United States government master specification for cloth-inserted ring cushions.
Edition: Rev.
Series: Circular of the Bureau of Standards -- no. 254; Federal Specifications Board specification -- no. 226a
Publisher: Government Printing Office
Published: 1925
Place of publication: [Washington
Language: eng
Subjects: Rubber.; Cushions.
Other titles: Specification for cloth-inserted ring cushions
Notes: "Issued June 13, 1925."

At head of title: Department of Commerce. Bureau of Standards.