American Card Catalog
ACC (American Card Catalog): Reference book published from 1937 to 1960 by hobby pioneer Jefferson Burdick. Burdick's system of letter prefixes and number suffixes to classify pre-WWII card sets (e.g. T-206) are still in use by The Hobby today.
Some common ACC prefixes include:
- B: Blankets and felt items
- C: Canadian tobacco cards
- E: Pre-WWI candy and caramel cards
- F: Food issues
- H: Advertising and trade cards
- M: Periodicals
- N: 19th Century tobacco cards
- R: Post-WWI candy and gum cards
- T: 20th Century tobacco cards
- V: Canadian candy and gum cards