Document:

Exhibit
4.2

 

	NUMBER
    C-	 	 
	 	 	 
		 	_________
SHARES

        SEE
REVERSE FOR CERTAIN DEFINITIONS

         

        CUSIP
G6580S 122

 

NOCTURNE
ACQUISITION CORPORATION

INCORPORATED UNDER THE LAWS OF THE CAYMAN ISLANDS

ORDINARY SHARES

 

This
Certifies that is the owner of

 

FULLY
PAID AND NON-ASSESSABLE ORDINARY SHARES OF THE PAR VALUE OF US$0.0001 EACH OF

 

NOCTURNE
ACQUISITION CORPORATION

(THE
“COMPANY”)

 

subject
to the Company’s amended and restated memorandum and articles of association, as the same may be amended from time to time,
and transferable on the books of the Company in person or by duly authorized attorney upon surrender of this certificate properly
endorsed.

 

The
Company will be forced to redeem all of its ordinary shares if it is unable to complete a business combination by            ,
2022 all as more fully described in the Company’s final prospectus dated          ,
2021.

 

This
certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar.

 

Witness
the facsimile signatures of its duly authorized officers.

 

	Chief Executive Officer	Cayman
    Islands	Secretary
	 	 	 
	 	 	 

 

	CONTINENTAL STOCK TRANSFER

    & TRUST COMPANY	 	 
	 	 	 
	 	 	 
	Name:	 	 
	Title:	 	 

 

     

     

    

 

NOCTURNE
ACQUISITION CORPORATION 

 

The
Company will furnish without charge to each shareholder who so requests the powers, designations, preferences and relative, participating,
optional or other special rights of each class of shares or series thereof of the Company and the qualifications, limitations,
or restrictions of such preferences and/or rights. This certificate and the shares represented thereby are issued and shall
be held subject to all the provisions of the amended and restated memorandum and articles of association as the same may be amended
from time to time, and resolutions of the Board of Directors providing for the issue of securities (copies of which may be obtained
from the secretary of the Company), to all of which the holder of this certificate by acceptance hereof assents. The following
abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out
in full according to applicable laws or regulations:

 

	TEN
    COM	—	as
    tenants in common	 	UNIF
    GIFT MIN ACT	—	 	Custodian	 
	 	 	 	 	 	 	(Cust)	 	(Minor)
	TEN
    ENT	—	as
    tenants by the entireties	 	 	 		 	
	 	 	 	 	 	 	 	 	 
	JT
    TEN	—	as
    joint tenants with right of survivorship and not as tenants in common	 	 	under
    Uniform Gifts to Minors Act
	 	 	 	 	(State)

 

Additional
abbreviations may also be used though not in the above list.

 

For
value received, _______________ hereby sells, assigns and transfers unto ______________________________

 

	 
	(PLEASE
    INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER(S) OF ASSIGNEE(S))
	 
	 
	(PLEASE
    PRINT OR TYPEWRITE NAME(S) AND ADDRESS(ES), INCLUDING ZIP CODE, OF ASSIGNEE(S))
	 
	Shares represented by the within
    Certificate, and hereby irrevocably constitutes and appoints___________________
	 
	Attorney to transfer the said shares
    on the books of the within named Company with full power of substitution in the premises.
	 	 	 
	Dated:	 	 

 

	NOTICE:
THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

	 
	Signature(s) Guaranteed:

    By

 

 

THE
SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS
AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 UNDER
THE SECURITIES ACT OF 1933, AS AMENDED).

 

In
each case, as more fully described in the Company’s final prospectus dated           ,
2021, the holder(s) of this certificate shall be entitled to receive a pro-rata portion of certain funds held in the trust
account established in connection with its initial public offering only in the event that (i) the Company redeems the ordinary
shares sold in its initial public offering because it does not consummate an initial business combination by            ,
2022, (ii) the Corporation redeems the ordinary shares sold in its initial public offering in connection with a shareholder
vote to amend the Company’s amended and restated memorandum and articles of association (as the same may be amended from
time to time) to modify the substance and timing of the Company’s obligation to redeem 100% of the ordinary shares if it
does not consummate and initial business combination by            , 2022,
or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective ordinary shares in connection with
a tender offer (or proxy solicitation, solely in the event the Company seeks shareholder approval of the proposed initial business
combination) setting forth the details of a proposed initial business combination. In no other circumstances shall the holder(s) have
any right or interest of any kind in or to the trust account.Exhibit 4.3

 

	NUMBER	RIGHTS

 

________R

 

NOCTURNE ACQUISITION CORPORATION

 

INCORPORATED UNDER THE LAWS OF THE CAYMAN
ISLANDS

 

RIGHT

 

SEE REVERSE FOR CERTAIN DEFINITIONS

 

CUSIP G6580S 106

 

THIS CERTIFIES THAT, for value received

 

_____________is the registered holder
of a right or rights (the “Right” or “Rights,” respectively) to receive one-tenth of one ordinary
share, par value $0.0001 per share (“Ordinary Shares”), of NOCTURNE ACQUISITION CORPORATION (the
“Company”) for each Right evidenced by this Right Certificate on the Company’s completion of an initial
business combination (as defined in the prospectus relating to the Company’s initial public offering
(“Prospectus”) upon surrender of this Right Certificate pursuant to the Rights Agreement (the “Rights
Agreement”) between the Company and Continental Stock Transfer & Trust Company (the “Rights Agent”). In
no event will the Company be required to net cash settle any Right.

 

Upon liquidation of the Company in the
event an initial business combination is not consummated during the required period as identified in the Company’s Amended
and Restated Memorandum and Articles of Association, as the same may be amended from time to time, the Right(s) shall expire and be worthless.
The holder of a Right or Rights shall have no right or interest of any kind in the Company’s trust account (as defined in
the Prospectus).

 

Upon due presentment for registration of
transfer of the Right Certificate at the office or agency of the Rights Agent a new Right Certificate or Right Certificates of
like tenor and evidencing in the aggregate a like number of Rights shall be issued to the transferee in exchange for this Right
Certificate, without charge except for any applicable tax or other governmental charge.

 

The Company and the Rights Agent may deem
and treat the registered holder as the absolute owner of this Right Certificate (notwithstanding any notation of ownership or other
writing hereon made by anyone), for the purpose of any conversion hereof, of any distribution to the registered holder, and for
all other purposes, and neither the Company nor the Rights Agent shall be affected by any notice to the contrary.

 

Holders of a Right or Rights are not entitled
to any of the rights of a shareholder of the Company.

 

Dated:

 

	 	 	 
	Secretary	[Corporate Seal]	Chairman of the Board
	 	2021	 

 

     

     

    

 

The following abbreviations, when used in the inscription on
the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations:

 

	TEN COM	—	as tenants in common	 	UNIF GIFT MIN ACT	—	 	Custodian	 
	 	 	 	 	 	 	(Cust)	 	(Minor)
	TEN ENT	—	as tenants by the entireties	 	 	 		 	
	 	 	 	 	 	 	 	 	 
	JT TEN	—	as joint tenants with right of survivorship
    and not as tenants in common Act

	 	 	under
    Uniform Gifts to Minors Act
	 	 	 	 	(State)

  

Additional Abbreviations may also be used
though not in the above list.

 

NOCTURNE ACQUISITION CORPORATION

 

The Company will furnish without charge
to each shareholder who so requests the powers, designations, preferences and relative, participating, optional or other special
rights of each class of shares or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences
and/or rights. This certificate and the rights represented thereby are issued and shall be held subject to all the provisions of
the Rights Agreement, and all amendments thereto, to all of which the holder of this certificate by acceptance hereof assents.

 

For value received,___________________________
hereby sell, assign and transfer unto

 

	PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE	 
	 	 
	 	 

	 
	 
	(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)
	 
	 
	 
	 
	 
	 

  

Rights represented by the within Certificate,
and do hereby irrevocably constitute and appoint                                                                                                                                                                                                                  
 Attorney to transfer the said Rights on the books of the within named Company will full power of substitution in
the premises.

 

	Dated	 	 	 	 

 

     

     

    

 

	 	 	 	 	 
		 	 	Notice:	The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever.

  

Signature(s) Guaranteed:

 

	 	 
	THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).

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