American specimen book of type styles : complete catalogue of printing machinery and printing supplies, 1912 (1912)
American Type Founders Company · Jersey City, N.J. : American Type Founders Company · leaf 1231
le features of otherquoins with the added advantage of a self-locking device, consisting of asmall spring inserted through the thick end. The purpose of this springis, when the quoin is in position to force the center rib of one part againstthe teeth inthe end ofthe otherhalf andthus secure-ly lock… … pi-l «u
American Type Founders Company · Printing · Typography · Printing machinery and supplies
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
