7/8" with back paper naming W&H in tiny letters and with larger text naming jobber Indianapolis Badge Co. Button has last names "Bryan/Kern" while at the center is "30¢" with the numerals encompassing the handle of a club so the club name becomes "30 Cent Club" indicating that's what a donor contributed to acquire membership. Reverse has exceedingly fine hairline 1/8" split by the collet all else is Essentially Mint. This is Hake #429. The last offering we could find was back in 2004 in a Heritage auction where it realized close to $400.00.