C and does not include sideways and inverted watermark. If its quality you're after.... All items will be packaged carefully to minimize the possibility of damage in the post. Singles and blocks will be dispatched in a hardback envelope. Full sheets will be rolled and dispatched in a tube.We are members of the PTS and attend Stampex (Stand 26). This item is in the category "Stamps\Great Britain\George VI". The seller is "mintgbstamps" and is located in this country: GB. This item can be shipped worldwide.