10 Pfg Hitler, vertical pair, upper stamp with grid, lower with block overprint, along with 4 Pfg with grid overprint on letter from "NETZSCHKAU 1.8.45" to Werdau, in perfect condition, cover three sided opened, cancelled se-tenants are extremely rare, expertized Opitz and photo expertize Kunz BPP (2017) "the se-tenant is genuine and is in perfect quality. . . . This se-tenant is very rare, particularly since in cancelled condition. "