Gray Brothers' new door & gate spring, patented January 11, 1859
Subtitle: no wrench required
By: Gray Brothers
Publisher: Gray Brothers
Published: 1859
Place of publication: New York, N.Y.?]
Language: eng
Subjects: Catalogs; Door fittings; Gray Brothers (New York, N.Y.)
Notes: Caption title.

With specification charts and prices.

Avery Classics copy: With markings.