Also, are other characters, such as the beaded border and the font style of the letters, useful in estimating the date on a token like this? Any good references that discuss this topic? Thanks for your help!
It is most commonly called a propeller and comes in many slightly different forms sometimes with different names to differentiate the devices. You can find them on early 20th Century tokens and in the catalogs from some of the major regional manufacturers of the time. Most state catalogs that get down to describing the ornamentation on trade tokens use propeller as a mainstay of their terminology.
I would say he most prolific use is post-World War II as propellers were very common on the thousands of tokens struck by Meyer & Wenthe, Schaaf, Osborne, Northwest, Wendell's, etc.. It seems like every parking token ever struck has a propeller or two on it.
Thanks very much, @tokenpro !
I always wondered what that was called, thought it likely did not have a name... Well, now I am informed. Cheers, RickO
You see it a lot on prison tokens as well.... (not that I have personal experience with those - in house)...
“In matters of style, swim with the current; in matters of principle, stand like a rock." - Thomas JeffersonMy digital cameo album 1950-64 Cameos - take a look!