eed help with ID please: Found Brass R.S.M.A "Special Guest" 1919 pin Railroad?

[FloodcityTom]

Need help with ID please: Found Brass R.S.M.A "Special Guest" 1919 pin Railroad?

Pulled this up from a old house site yesterday. It is brass, the round portion about the size of a Nickle. Paited with white enamal, It reads R.S.M.A. SPECIAL GUEST 1919 with the painted numbers in blue on a bar below, 1197. The back has stamped AM.RY. S. Co. NY which research reveals is America Railway Supply Company of NYC. They made baggage tags and "cap badges" Missing the pin on the back.
Thanks

 

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[vhs07]

This says RSMA 1922 Special Guest badge, Rose Bowl Flea Market, Pasadena, California, USA
It might mean that is where the photo was taken. Not much help but at least you know there's more out there.

 

[FloodcityTom]

This says [FONT=&]RSMA 1922 Special Guest badge, Rose Bowl Flea Market, Pasadena, California, USA
[/FONT]It might mean that is where the photo was taken. Not much help but at least you know there's more out there.
View attachment 1855269

Thanks...I think I got it.

RSMA is RAILWAY SUPPLIERS & MANUFACTURERS ASSOCIATION