trying to narrow down date for H&H backmark

[gpspartans]

photos for sharpshooter badge on this thread under, "is this a pre 1921 ss badge"

 

hallmark, back mark in question is the H&H eagle with what looks like a dot between the H & the other H instead of normal dash - (maybe this a manufacture mistake). eagle has large dot for eye of eagle. thinking this might be the M1922 badge or perhaps the 1935-1937. badge is marked sterling but has no other markings. badge does have what looks like a musical note but suspect this is also manufacture mistake.

 

anybody know of good reference for H&H backmarks?

 

any help will be greatly appreciated!

 

David

 

gpspartans