Z. Zielinska paintings on bone

[owleyes]

I bought these 2 miniature paintings on etsy for ~35 a piece. These portraits are based on renaissance paintings from Botticelli and Van Der Goes. I've seen a couple floating out on eBay and other etsy stores for 150-200 but I'm curious if anyone knows anything about the artist or how to appraise them?

Is like to collect more but I want to know what's a good price range? They are 2-3 inches and one has a gold bail. All of the pieces I've seen are around that size.

 

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[kingskid1611]

Never heard of them but they are interesting.

 

[Mackaydon]

What did you learn to suggest or prove they are paintings by "Z. Z." ?
Don......

 

[owleyes]

Both of my pieces have a stylized zz but I have seen pieces with the artist name and the zz. Here is an image I found of the name: