In order for me to properly assess what you have I will need to see images of the front, back (do not remove from frame) and a clear, in-focus close-up of the signature.
Please send the photos at your convenience. There is not an extra charge to provide more pictures here.
The only listed artist with the last name Kelez is Ivan Marion Kelez who was born in 1907. I would be happy to look over images for you to confirm what you have.
I am wondering if you are still interested in having your item assessed?
Please let me know and do you have requested images available?
I look forward to reading back from you.