LUBETZKO, 20 Pfg dark violet-ultramarine horizontal overprint horizontal pair, official issue April 1920 as multiple franking on envelope to Forst / Lausitz, double-circle LUBETZKO (KR. LUBLINITZ) 30 8 20 (OS handbook No. 197.1), rare cancel, envelope reused, originally from Breslau, age and use marks typical of period