# Great Britain Type A9c
#### Trial Neopost Machine

Neopost approached the Post Office on 23rd June 1925 for permission to put 25 machines into service for a few days trial with varying customers, these machines being identified by the prefix "X" in the M#.
In subsequent communications it was agreed that the letters "T.N.M." (Trial Neopost Machine) would be shown in the bottom of the townmark, thus saving the need to change the townmark when machines were transferred to different postal districts for trial by other companies.
On 21st November 1925, the Post Office agreed to the arrangement on an experimental basis for a period of six months, noting that the arrangement also extended to machines outside London. It is not known whether the six month period referred to the arrangement in general, or whether it meant that a particular customer was limited to a six month trial period.
List of Users
| M# | TM | Value | User | Earliest Known | Latest Known | Notes |
| X1 | | | | | | |
| X2 | | | | | | |
| X3 | LONDON / T.N.M. | ½d | Benjamin Electric Ltd., N.17 | | | Approved 9 XII 25 |
| X4 | | | | | | |
| X5 | | | | | | |
| X6 | LONDON / T.N.M. | 1½d | | 2 I 26 | | Listed in The Stamp Lover, Nov & Dec 1926 |
| X6 | NEWCASTLE-TYNE / T.N.M. | 1½d | Newcastle on Tyne Electric Supply Co., Ltd. | 18 X 26 | 6 XI 26 | Listed in The Stamp Lover, Nov 1927 |
| X7 | LONDON / T.N.M. | 1½d | | | | Listed in The Stamp Lover, Nov 1927 |
| X8 | | | | | | |
| X9 | | | | | | |
| X10 | LONDON / T.N.M. | ½d | Pirelli Tyre | | | Listed in The Stamp Lover, Nov & Dec 1926 |
| X11 | HULL | | Despatched to Hull, not known if used | | | PO Archive list |
| X12 | BRIGHTON | | Despatched to Brighton, not known if used | | | PO Archive list |
| X13 | EDINBURGH | | Despatched to Edinburgh, not known if used | | | PO Archive list |
| X14 | NOTTINGHAM | | Despatched to Nottingham, not known if used | | | PO Archive list |
| X15 | GLASGOW / T.N.M. | ½d | Wylie & Lochhead Ltd. | 12 II 26 | | |
| X16 | LIVERPOOL | | Despatched to Liverpool, not known if used | | | PO Archive list |
| X17 | BRISTOL / T.N.M. | ½d | Metal Agencies Co., Ltd. | | | Installed 24 II 26 |
| X18 | SHEFFIELD | | Despatched to Sheffield, not known if used | | | PO Archive list |
| X19 | MANCHESTER | | Despatched to Manchester, not known if used | | | PO Archive list |
| X20 | LONDON / T.N.M. | 1½d | Fred. Gorringe Ltd., S.W.1 | | | Approved 9 XII 25 |
| X21 | SPECIMEN | ½d | British Industrial Fair | | | Listed in The Stamp Lover, Nov & Dec 1926 |
| X22 | LONDON / T.N.M. | 1½d | David Cope Esq. | | | Approved 9 XII 25 |
| X23 | LEEDS | | Despatched to Leeds, not known if used | | | PO Archive list |
| X24 | BIRMINGHAM | | Despatched to Birmingham, not known if used | | | PO Archive list |
| X25 | LEICESTER | | Despatched to Leicester, not known if used | | | PO Archive list |
| X26 | NEWCASTLE-TYNE / T.N.M. | ½d | Nicholsons, Ltd. | | | Listed in The Stamp Lover, Nov & Dec 1926 |
| X26 | NEWCASTLE-TYNE / T.N.M. | 1½d | Nicholsons, Ltd. | | | Listed in The Stamp Lover, Nov & Dec 1926 |
| X27 | CARDIFF | | Despatched to Cardiff, not known if used | | | PO Archive list |
| X28 | HULL | | Despatched to Hull, not known if used | | | PO Archive list |
| X29 | HULL / T.N.M. | ½d | Reckitt & Sons | | | Listed in The Stamp Lover, Dec 1927 |
| X30 | BIRMINGHAM / T.N.M. | 1½d | The Wholesale Traders Association & Co., Ltd. | 1 IV 26 | | |
The PO Archives also contain a proof of an "ABERDEEN / T.N.M." townmark, but the M# to which it was assigned is not known.