INTER-ALLIED COMMISSION - UPPER SILESIAN POLICE FORCES - COLONEL, 3 Mark dark violet horizontal pair Steelworks and Dove of Peace 1920, multiple franking on registered letter from Italian Upper Silesian police member to Rome/Italy, double-circle OPPELN 2 3 22 * * f (OS handbook no. 237.18), black single-circle official seal COMMISSION INTERALLIEE DE GOUVERNEMENT ET DE LA PLEBISCITE DE HAUTE-SILESIE - POLICE DE HAUTE SILESIE - LE COLONEL (OS handbook no. II.1.b), arrival (12.3.1922) on reverse, rare franking and interesting early inflation-period document, opening wear at upper envelope edge