Bird USA pottery mark

Hi. I am wondering if anyone can help me in identifying this pottery mark. I’ve looked and looked, but I can’t seem to find any info on it. I don’t even know if it’s an older mark or something new.
Thanks!

 

Hi, Beth! Did you forget to attach pictures?

 

I thought I did! Sorry

 

It's Burden.

 

I think it's something new. The clay on the bottom looks pristine too, as if never used. Are these spoon rests?

 

@janetpjohn , is that something newer?

 

I think they made restaurantware, San Gabriel, CA, 1945 to at least through the 1970s, per Lehner's. She doesn't show this mark, but I drew it in my book a few years ago. I can't tell you where I learned it belonged to Burden. There's one listing on replacements that also shows this mark, though.

 

In Lehner's. Established 1945.

 

Thanks Janet and Bakers, these may have been never used and wrapped up for decades. I'm still trying to figure out if they are spoon rests or what? No size given.

 

Spoon rests don't seem like restaurantware items, and who would want a stack of them, but I don't know what else.

 

Sorry! They are skillet style plates. Thank you all for your help