What are these called? Stamped art? Stenciled art?

I found these at a local thrift store yesterday; I've seen them before but they are usually 3 horses or 3 ladies dancing, and I usually ignore them, but I've never seen any with these type of subjects.
What are these called?
How are they made?
Where are they from? (I'm guessing oriental, india or thai)
These were only $10 each and are different from any I've seen - are they worth anything (are they worth putting on eBay)? Otherwise I'll just give 1 to each customer at my next estate/yard sale!
Thank you for any information.

 

The backs are the same; they were all framed at same shop

 

These are similar in technique, and it says woodblock:
https://www.incollect.com/listings/...nese-woodblock-prints-featuring-horses-127781

 

I have a few that I bought in China years ago and they were called stone rubbings from old graves or ancient memorial sites. If you do an image search, you may find the exact ones that describe what site they were taken from.

 

Really?!

 

Could be stone rubbings, not necessarily from tombs. Think of Inuit stonecut prints - much different imagery, but these could be the same technique.

https://www.worthpoint.com/worthopedia/chinese-stone-rubbing-art-signed-1871126694

https://www.invaluable.com/auction-...colored-stone-rubbing-on-pap-210-c-539472db49