Found a treasure trove of fine art(?) today - some Jewish, some abstract

I found all these today at a friend's thrift store; they'd just come in when I got there & I bought them before they were completely processed!
1 painting is by E. Welshopp, a jewish artist - but I found the EXACT same painting had sold on ebay?
https://www.ebay.com/itm/3037351432...=true&nordt=true&rt=nc&_trksid=p2047675.l2557

I think the 2nd one is my favorite & I think it's a print - it's dated '56 but I can't make out the artist's name (or initials?) - can anyone tell me who the artist was?

The last 2 are on big pieces of wood & the back are signed Frazee? Are these by John Frazee? (I found his website (http://www.frazeefinearts.com) & the works under John's Gallery look like these - but I can't find a signature to match.
Another thing - my friend's thrift store got about 50 or more of these - I can get them for $25 each - what I paid for these 2 to check here - are they worth it?

Thank you for any help - it is greatly appreciated!

 

The Israel picture is a poster. Decorative.

 

My favorite of the group - know who artist is?

 

I believe the first two are serigraphs.

 

Second one is Tali Weitz. Serigraph. Has sold at auction before.

 

First is a painting I looked through

Even with the close up of signature where you can see paint 'lines' along paper's texture? I'll take back off to be sure because I was going to list it as a painting - thank you.

 

According to this (and Google translate): Tali Weitz
https://www.ad.co.il/ad/10936708

 

Surname on the first ends in OFF, not OPP.

 

Google “E. Welshoff” I found other examples.

 

It's very odd that when I google E. Welshoff, this is the only image that comes up.

 

I had it wrong it is Eliezer Weishoff

 

@moreotherstuff -

- what I noticed when I googled E. Welshoff is that everything defaults to the spelling of Weishoff.

E. (Eliezer) Weishoff is an Israeli artist.

https://www.worthpoint.com/inventory/search?query=serigraph+weishoff&categories=

Edit: Lithographer beat me beat to the correct name!

 

A much more satisfactory result.

 

The Weishoff piece is another unsigned, un-limited edition serigraph, as Lithographer noted. The identical one sold on ebay a couple weeks ago in a different frame is enough to know that. But if you check the three ink dots above and to the right of the signature it is very clear that these are reproductions not original. (The seller of the ebay piece you linked to says the same thing - they do not know if it is a painting or a print.) In this case we know it is a print.

 

treasure trove?

 

"Fine art"????

 

Mark London, Bakersgma - excuuuse me! (1st impression & got excited, sorry!)