I posted the following information

Mel Jung knows the history of these chips. Send him a post at

ChipperMel@cs.com

There is a brief history in Seymour's Antique Gambling Chips, 2nd ed. pp. 12-13 {with a pictoral display on pp. 222 - 228]. This book is a must for all chippers who collect other than club/casino chips--but there is even helpful information on these chips as well.