http://catalogue.swanngalleries.com/asp/fullCatalogue.asp?salelot=1958++...
Sale 1958 Lot 303 OROWITZ [ISRAEL]. Circa 1948. 37 1/2x24 3/4 inches. Condition B+: tears, losses and stains in margins; vertical and horizontal folds; creases in image. Paper. A show of Israeli strength, resolve and pride in the form of a photomontage and wood block poster in green, yellow, brown and gray of a soldier advancing with tanks in front of him and planes above him above the quotation "Behind us the slavery and humiliation in front of us freedom and resistance." Estimate $1,200-1,800
Leena Dallasheh 11:35 AM (18 minutes ago) to me http://www.palestineposterproject.org/poster/behind-us-slavery-and-humil... It says: Behind us: slavery and degeneration. ahead of us: sovereignty and independence that is the battle! The signature is probably Moshe Beilinson Leena Dallasheh, Ph.D. Post-Doctoral Fellow Center for Palestine Studies Columbia University
Note: I have credited this poster to Moi Ver based on the comparison of signatures DW