Stork brooch- vintage or antique?

Hi all,is this vintage or antique?. Looks antique to me. Stork looks to carrying a cupcake (or another bundle of joy) Maybe sterling silver? (No magnetic) There’s something like a stamp be hind the one wing (looks like letters to me and not numbers?) Maybe ATTS? (Probably wrong) Thanks for any comments

 

It’s forties into fifties ish.

 

Maybe even older, but not newer. Atlas, maybe? Arts?

 

Ok.Thank you for the help

 

Appreciate the comment. Both good suggestions. I will have another look under the magnifying glass. Thank you

 

I like the look and don’t really want to clean it. But do you think it’s sterling silver?

 

I'd lay good odds. Try using the good old thumb test. Rub hard with your thumb and see if any of the tarnish rubs off. If your thumb turns gray straight off, the odds of silver are high. If it takes real rubbing or doesn't happen at all, the odds go way down.

 

Great advise. Thank you. I will check

 

Right you are. Thanks again @evelyb30 .The tarnish rubs off nicely. A pretty little thing. So the mark: SILV or SRV? for Silver? So would it be sterling silver right not pure silver? I read sterling silver tarnishes easier than pure silver.

 

It looks like it was poorly cast with surface bubbles and full of porosity,I'm surprised it wasn't tossed into the scrap bin and not "sold".