Another military pin

[Alset]

Have a pin that my brother found at the same site where I found the EG&A pin. Am hoping to find out the era and possibly the maker. Sorry about the photos. The best ones I have of it

 

[jewelerguy]

this page might help Evolution of U.S. Army Artillery Insignia

 

[Alset]

Thank you

 

[NOLA_Ken]

Definitely need to clean it up to see what all of the writing on the back is, but the keeper looks to be a "Phinney clutch" which will date from the mid 1920's to just before WW2

 

[Alset]

Thank you nola