Help determine technical execution pattern.

[meison]

Good day to all ! There is a picture , n /x, 40h30sm , western theme, apparently not expensive. I can not understand her own technique. Canvas pasted on plywood, which is a white primer , then why very large cracelures , and top coated with lacquer. Why varnish ? And another interesting picture old? and whether any any value ? Advance all grateful.

[John Preston]

I think yes, you're right - modern painting oil on canvas, made the claim in the late 19th - early 20th century and antique - as evidenced by the large craquelure - to give credibility "legend" ...
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Alas, the cost of painting tends to zero.