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These Iroquois graded-difficulty number cards were made by DeGroat - Firman - Smith. They were made around 1949.

This set of subtraction cards is missing number 88. You will receive a total of 99 cards and cardboard case.

These cards measure 7 inches tall by 4 and 3/8 inches wide.

Perfect cards for your altered artwork or whatever else you can think of. Still very functional as flash cards.

I found an ad online for these cards from the year 1949. Here is just part of the ad:

The Iroquois Graded-Difficulty Number Cards by DeGroat, Firman, and Smith

The superior flash cards with the distinctive, copyrighted features. Teach all 390 combinations in addition, subtraction, multiplication, and division through a triple learning process. Provide for concentration of drill in proportion to difficulty. Effective and attractive.

Chicago New York Atlanta Dallas

These fit perfectly within a small priority box. Would be happy to ship these internationally. Just convo me for a price.

Thanks for looking!

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Vintage Iroquois Subtraction Flash Cards


  • Vintage item from the 1940s
  • Materials: cardboard, paper, ink
  • Only ships within United States.
  • Feedback: 290 reviews
  • Favorited by: 10 people