Ukraine: 1920 (26 June). Registered cover to Baku franked with pair of 3r50 perforated coat of arms and 3k imperforate Kharkiv type I trident overprinted Ukraine stamp further upwards handstamped PYB for ten roubles inland registered letter rate tied by KAHRKOV datestamps and 18 June arrival cds. Scarce usage and destination. Seldom seen. expertised W. POHL
