SOUTH ARABIAN FEDERATION 1966 Qu'aiti 10f on 15c bronze-green error, SG66aSouth Arabian Federation 1966 (1 Apr) Qu'aiti 10f on 15c bronze green 'weaving', type 23 Churchill overprint, error overprint INVERTED, SG66a. A very fine unmounted mint example with full original gum. A scarce variety presented in the highest condition grade. The Federation of South Arabia was a short lived federal state under British protection in what would become South Yemen. It was formed on 4 April 1962 from the 15 protected states of the