Can anybody id this collar disc?

[SCDigginWithAK]

 

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[G.A.P.metal]

Any manking on the back? Loop?

 

[BigBiloxi]

I hope someone can help with this one green808 because I have two just like it. One of my hunting partners has one like it in silver. Mine were found at the site of a turn of the century military prep school in Mississippi if that helps any.

 

[TheCannonballGuy]

I identified that same emblem for somebody in this forum two days ago. Age depends on the type of attachment-pin(s) on the disc's back. Post a photo of your disc's back.

Here is what I wrote two days ago:
They are definitely US Army ROTC (Reserve Officer Training Corps) insignia discs. I wore them on my high-school ROTC uniform. If you want to see proof of the ID, check the photo at lower right on this webpage of insgnia supplies: Custom and Stock Embroidered Emblems, Patches, Flags, and ACU Rank, as well as Metal Rank & Insignia for U.S. Army ROTC

 

[SCDigginWithAK]

Back of it

 

[cudamark]

I found what I think is a lapel pin with a similar image and was told it was from a signalman's uniform WW1 or earlier. I'm no expert on these by any means so I'm curious what you find also! If I can remember where I put it, I'll post a photo.

 

[TheCannonballGuy]

Thanks for the photo of the back. It shows your US Army ROTC (Reserve Officer Training Corps) collar-disc insignia has what is called a "screw-pin" for attaching the disc onto the uniform's collar. Your disc's emblem is stamped into it, rather than an emblem manufactured separately and applied onto the disc. Stamped-emblem discs which use the "screw-pin" attachment-form date from 1910 to 1937.

 

[SCDigginWithAK]

Thanks for the photo of the back. It shows your US Army ROTC (Reserve Officer Training Corps) collar-disc insignia has what is called a "screw-pin" for attaching the disc onto the uniform's collar. Your disc's emblem is stamped into it, rather than an emblem manufactured separately and applied onto the disc. Stamped-emblem discs which use the "screw-pin" attachment-form date from 1910 to 1937.

Thanks so much!