State of Israel - extended use of interim franks: 19 MAY 1948 cover (on obliterated "express" stationary) from PETACH TIKVA to TEL AVIV, franked 11m for the 10m period letter rate, using interim franks & tied by 3x strikes of the reintroduced Mandate double ring postmark; slit open at bottom. The Minhelet Ha'am era stamps were valid for postage until 22 May (a Saturday, making 21 May the last real day for their use); the sending locale used Mandate period cancellation devices until it received the Israeli trilingual postmark on 1 July. Effectively a "3 postal period" cover.