Thrift store find - Leonardo Nierman A/P. Also unsigned plywood boards w/similar art - by him too?

This came into a local thrift store yesterday morning. It is a A/P by Mexican artist Leonardo Nierman (image search shows it's called Espuma (Foam).
Last week the store got in a large amount of big plywood boards with similar looking art but they are unsigned. I looked for anything about Nierman doing anything on large wood pieces but couldn't find anything - has anyone heard of him using large pieces of wood to paint on?

 

Here's one on board.

https://www.incollect.com/listings/...o-nierman-oil-abstract-on-wooden-board-532047

Debora

 

Yes but it's signed; these aren't signed - could they be his?

 

May we see an example of what you're referring to?

Debora

 

They're at my friend's store. I'll try to get a few tomorrow.

 

I sold a number of Nierman oils decades ago. The signature on the print is rather "uncomfortable" and a wonky signature combined with a/p should always ring alarm bells.

 

There's a lot of similars floating around and this one, for instance, was purchased at a gallery in Caesars Palace Forum Shops according the seller.

Debora

 

These are the ones that have sold on eBay - most paintings sold for $1,000+

leonardo nierman painting in Art: Search Result | eBay