Israeli trilingual tied to red overprinted interim frank: 1st day Israel 16-5-1948 local TEL AVIV cover, franked 10m per period domestic letter rate, using red overprinted interim Warsaw Ghetto frank (Ba #22b - unpriced on covers) & tied by single strike of the Israeli trilingual postmark of the Head Post Office + the National Loan cachet applied by the Tel Aviv sorting office; slit open at back. The interim franks were accepted as valid postage until the end of day 22 May; rare combination on a cover.