Back when libraries still had card catalogs, and even before word
processing, how were periodicals holdings lists kept? Were there
annotations on the cards in the catalog? Was the Kardex kept near
reference? Some other method?

Curious,

Steve Black
Reference, Serials, and Instruction Librarian
The College of Saint Rose
392 Western Avenue
Albany, NY 12203-1419
blacks@strose.edu
(518)458-5494