Cuba8 Offer To 907 Jewish Refugees Expires vy tt-v GULP of ,'ZXiCO I IZLZ OP .NS-n f J On Isle of Pines,-penal island, Cuba offered temporary haven to more than 900 Jewish refugees from Germany aboard liner St. Louis, which has wandered In Caribbean since nation refused entry at Havana.. Inset map shows location of the Island. Buildings In Isle of Pines alrvlew Are those of model prison; at left Is airport President Laredo Bra's offer stated refugees must Inhabit concentration camp, provide for themselves until arrangements, ean be made for admitting them to other countries. A deadline to aeeept the offer expired yesterday and now the refugees are returning to Germany.