Sg 45 2d Blue Plate 12. A superb Post Office fresh unmounted mint example. All items are described as accurate as possible. The item "Sg 45 2d Blue Plate 12.A superb Post Office fresh unmounted mint example" is in sale since Tuesday, November 7, 2017. This item is in the category "Stamps\Great Britain\Victoria\Line-Engraved Issues". The seller is "avp-ltd" and is located in Tamworth. This item can be shipped worldwide.