Here is a matched pair of Vintage ANDIS Model B Barber's Clipper Blades, 22 and 28 Tooth.

Master Sets, Circa 1950's, Sharp and Oiled, Original Box, Sharpening Schedule.

Made for the classic Model B trimmer, but may fit others, check to be sure please. 

These blades are from the estate of a former owner of a 1950's barber shop.