Like Dog Tax/licenses, it Must have been the predecessor to Bicycle Licenses.
I wasn't aware of them either. possibly not something that went over too well
apparently in the 40's they dropped the word "Tax" in favor of License
Thanks for the research info Jeff! It is in good shape with just the one point of the star bent and part of the strap on the right side may be missing. Here's a picture of the back, with a quarter for size reference.
Garrett At Pro, 8 x11" and Nel Storm coils
Garrett Propointer er, Pro Pointer AT
White's V3i Standard, 10" DD, 13" Ultimate and 4 x6" sniper, 6 x10 coils, Drect 12 x 15 coil
Whites MX Sport With Detec