Need Help w GS Button's Vintage

[cambria09]

Hello All. I found this great seal button at a 1920's-ish home site here in FL. It is not magnetic and just under 1-IN or about 23-MM in diameter.

I am thinking it is from the WWI era but cannot confirm that with what I see on the net.

Thanks for any help putting a date on it and Good Luck out there. C9

 

[Carolina Tom]

They started making them in 1902. The back mark is the key.

http://www.treasurenet.com/forums/what/112828-great-seal-button-backmarks-help.html

Here is a thread on the topic.

Well done sir!

 

[nhbenz]

That backmark was used up to the 1960's, so doesn't narrow it down much. But yours would be post 1923, as during WWI and a few years after these had a black finish applied for camouflage purposes. WWII is a safe bet, due to the massive quantity made in that period.