Brown's patent safety alarm detector mortise locks for doors of every kind
By: [Ephraim Brown (Firm)]
Publisher: The Manufactory
Published: 1857
Place of publication: Lowell, Mass
Language: eng
Number of pages: 35
Subjects: Catalogs; Locks and keys; Burglary protection; Ephraim Brown (Firm)
Other titles: Take care! : one city reported 80 burglaries in 20 days!; Take care!
Notes: Statement of responsibility from p. [2], 2nd group.

Date based on testimonial letters (pages 27-33).