Sg 589 Spec SB70 1½d Green. A superb unmounted mint pane of 6. All items are described as accurately as possible. The item "Sg 589 Spec SB70 1½d Green.A superb unmounted mint pane of 6" is in sale since Friday, May 15, 2020. This item is in the category "Stamps\Great Britain\Elizabeth II\Pre-Decimal (1952-1971)". The seller is "avp-ltd" and is located in Tamworth. This item can be shipped worldwide.