1948-1951, Lot of 4 different covers 

1.  A cover from France to Tel Aviv, bearing 1st Postage Due Stamps on a 'To-Pay 10 mil' cover.
2. 1949, An airmail cover from Tel Aviv to Basel, franked with 160mil Doar Ivri stamps.
3.  1950, A stampless Ratmaayim cover to Jerusalem, franked with 3rd Postage Due 30 mil.
4.  1951, An airmail cover with 40mil postage to London.