Throwback Thursday Object: Spine Chase



Our museum collection contains over 230 years of products for people that are blind or visually impaired, but it also contains a lot of interesting manufacturing and printing history.  Our object this week is a specialty tool used to emboss the print gold leaf spine labels on our braille books.  A “chase” is a frame used to hold printers type in a printing press.  The type was set by hand and the screw handle tightened until the type was locked in place.   The type chase was then slid into a book case stamping machine.  It was probably custom made, either for APH locally, but more likely directly in the APH machine shop sometime around 1960.
Captions: First Photo, Steel table on the chase has a fixed lip on one side and an adjustable lip on the other tightened with a hand screw.
Second Photo: The green linen spine of the American Vest Pocket Dictionary from 1969 shows a gold leaf label stamped with the spine chase.
Micheal A. Hudson
Museum Director
American Printing House for the Blind

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