This poster is printed in a limited edition print designed by Andrzej Krajewski. It is a contemporary Polish
Art poster inspired by the Steven Spielberg film "Raiders of the Lost Ark" rather than a poster issued for the film release (as are older Polish Posters). These are made in limited editions printed normally in one run of approximately 350 - though I will try to confirm the exact amount.
These posters are not normally hand signed or numbered but the artists signature is normally included in the printed design.
The poster is available to buy from the Polish Poster shop http://www.polishposter.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=4769