In order for me to properly assess what you have I will need to know the size and see images of the front, back (do not remove from frame) and a clear, in-focus close-up of the signature.
If you had already attached images to your initial posting, they are not showing for me here on my end.
Please send the photos at your convenience. There is not an extra charge to provide more pictures here.
An original painting by Valentine Synave Nicolaud Val (1870 - 1943) can carry a high auction estimate of $1000 - $2000 on today's market.
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