Umpire Indicator Date?

[AMPduppp]

Picked up this umpire indicator as a display piece and was wondering if anyone had a date range for it? It’s blank-backed, 4 balls 3 strikes with a blank space after ball 4/strike 3.

Thanks!

[Michael B]

It looks like it is made of bakelite. Even though bakelite was invented in the 1870's you tend to find it used extensively in the 1930's and 1940's. If I had to guess I would say that period.

[ooo-ribay]

Originally Posted by Michael B

It looks like it is made of bakelite. Even though bakelite was invented in the 1870's you tend to find it used extensively in the 1930's and 1940's. If I had to guess I would say that period.

If you want to confirm it’s bakelite, either a) run very hot water over a corner; if it’s bakelite it will smell like formaldehyde or b) swab it with a Formula 409 soaked Q-tip; the Q-tip will turn yellow if it’s bakelite.

[AMPduppp]

Thank you both for the insight!

[etsmith]

I think it's made of celluloid, it was often used to make vanity sets.