1948 provisional postage dues: interim period 11-5-1948 manuscript dated post card from HERZLIYA-TEL AVIV to TEL AVIV franked 10m for period 7m postcard rate using invalid JNF Zionist Congress Jubilee label (not overprinted with 'DOAR'), so not cancelled & postcard marked by tax boxed cachet - oddly for twice the deficiency for letter rate (20m), an error by the post office - which was paid using horizontal pair of TEL AVIV overprinted 10m Weizmann interim Ba12 franks obliterated by the Mandate "T" tax handstamp (a light strike of which appears next to the invalid frank), making these "provisional" postage due franks. The tax was probably paid sometime between 12 - 21 May when interim stamps could be used as postage dues (thereafter Doar Ivri stamps, until 28 May when the 1st Postage Dues entered local use); as the Minhelet Haam canceller not used on the tax franks (last usage date was 14 May; 15th was Saturday), the postcard may even date to the narrow period of 16-21 May (see similar cover in Aloni p.100). Very fine and scarce; rare as a postcard. Estimated value $1600++