My search engine for chips often picks up Boy Scout items with the word "chip" in them. What are those things?

For example, this auction:

1970s Boy Scouts of America Totin' Chip Card

Item number: 160079673313

http://cgi.ebay.com/1970s-Boy-Scouts-of-America-Totin-Chip-Card_W0QQitemZ160079673313QQihZ006QQcategoryZ13887QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

"1970s Boy Scouts of America

Totin' Chip Card Item No. 4234

Official BSA Item

Presented for understanding responsibilities related to handling saw and ax, giving "totin' rights" to Boy Scout."

Robert