artist Alex Dzigurski western vista,oil painting

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was giving this large picture as i should say painting when my grandfather died its in a golden leaf like frame and I havent a clue about this whis someone could tell me something and is it even worth anything ? it is sentamental since it sat above my grandfathers sofa for years but i wish i had a syory to go with it. any info would be great thankyou DIANE FROM WISCONSIN