Iraq: 1942 (20 April). Mausoleum of Sitt Zubaidah definitive 2f overprinted On State Service for official use unmounted mint plate 1A complete sheet of 100 with Sg. type O26a (Row 5/8) and O26b overprints(Row 9/10) varieties. Some separation on middle and a couple of brown spots otherwise fresh and scarce. Sg. O231, O231a, O231b. **
