Leilão Bidspirit | 1948 INTERIM MERHAVIA genuine correspondence

1948 INTERIM MERHAVIA genuine correspondence cover, Kibbutz Merhavia to Kibbutz Hazorea, franked with M. Ha'am 40 mils stp (Bale # 7), tied by black M. Ha'am pmk Merhavia, slight central vertical fold, VF& scarce item as no reg letters known from this period. Estimated value $ 4000 (please see The postal History of the Transition Period in Israel p. 163), signed in pencil on backside by Y. Tsachor with certificate by him. VF & extremely rare!!