Arm and Hammer bird cards

I have had very little luck in figuring out about what year these would have been made.

 

Welcome, @prestoncohunter --

Not a definitive answer, but based on the reply on this page there are a few possibilities:
https://www.deseretnews.com/article...merica-cards-were-offered-in-a-set-of-60.html

 

According to this blog post about bird series cards, the Third Series of "Useful Birds of America" was published in 1922.
https://blog.lauraerickson.com/2017/07/arm-hammer-bird-trading-cards.html

 

Thank you very much. Now I just need to look thru and see how many we found. I think there we have about 10 of them. They are a bit older than I expected.

 

Figtree provided a link to an excellent page.
For more information (and estimates for market values)
about this (or any non-sports card set), ask at this forum:
https://forum.vintagenonsports.com/
There's very little if anything the guys there don't know about collectible cards.