This is a print from a painting entitled South Cushing and was painted in the late 1950's as a tempera on board. Yours is a print of the original piece, so it has value as an open edition reproduction lithograph. This piece has a value of $150.00 retail.
It is important for you to click the stars after you have read my answer.
This print was created by the publisher in the 1980's when the Wyeth collection was contracted for printing. The value today of your print is $150.00. The original painting is worth over $30,000.
These are pertaining to the serial number of the company that printed and framed it, likely a frame reference and not significant to the value .
I forgot to ask before I finished for you to click the stars for me, thanks!