Stamps and covers from the Estate of the late Menachem Niv

1948 NAHARIYA 1st SLOGAN 22.3.48- Domestic family correspondence cover from Regba near Naharya. (original stationary) to Herzliya, with 1948 Nahariya 1st provisional Interim slogan post mandate type B. dated 22.3.1948 mauscript time recorded 11:00 hours in black ink, with mandate 10 mils (BA # 97) tied by Mandate D.C. postmark HAIFA 23 MR 48. Slogan repeated on reverse. Cover roughly opened on top with few small tears not affecting stamp or postmark with few scattered stains, slogan cancellation in very clear impression certificate by Y. Tsachor, previously signed Muentz in pencil on bottom right of front. VF & extremely rare!!