If you’re going to punch holes in 3 x 5″ index cards for your new library card catalog and want something to match your 20 gauge office furniture, you really ought to have an era-appropriate hole punch. Presenting the industrial strength Mutual Centamatic Punch No. 250 (Made in Worchester, Mass. U.S.A.), which I picked up today at the local thrift store for $0.75.