Sg 393a 9d Green U23 Control single. A superb unmounted mint example. All items are described as accurately as possible.The item "Sg 393a 9d Green U23 Control single. A superb unmounted mint example" is in sale since Tuesday, September 29, 2020. This item is in the category "Stamps\Great Britain\George V". The seller is "avp-ltd" and is located in Tamworth. This item can be shipped worldwide.