Technical "A" Flathead heads

I'm digging through a pile of FH parts that came my way and i found a pair of heads stamped "A". I don't know anything about them, i'm certain one of you out there can enlighten me.

Are these worth cleaning and trying to sell? or are they not worth the effort?

 

Can you post a picture?

 

sure, a little later today i'll be out at the garage. I've seen I think all the head casting numbers, i've just never seen ones with just an "A" on them.

 

They’re 1938-41 or 42 221 heads. Id say worth selling. Someone will want them

 

@FritzFord got it right!

Dave

 

To affirm, your info is correct.

 

here's a pic just to help confirm what y'all think, they are 24 bolt, which threw me for a loop. thanks for the info, i'll throw them into the summer swap meet pile.

 

Info given was correct. But, don't expect much from stock heads. It's hard to give them away. I got $300 for the last pair of "A" heads I had, but they were bolted on a running engine.