SG154s 4d Grey Brown Plate 17 block of four. The item "SG154s Specimen 4d Grey Brown Plate 17 block of four.Superb MNH unmounted mint" is in sale since Monday, October 7, 2019. This item is in the category "Stamps\Great Britain\Victoria\Surface-Printed Issues". The seller is "mostly-gb" and is located in Barnsley. This item can be shipped worldwide.