| Added by |
 Alain Martineau
|
| General Description : | The Castle series or Castle High Value series are two definitive stamp series issued in the United Kingdom during Queen Elizabeth II's reign. The first series, designed by Lynton Lamb was issued in September 1955. The second one was created from pictures taken by Prince Andrew, Duke of York, the Queen's second son. The stamps bore the highest denominations completing the Wilding and Machin definitive series. Each Castle series was replaced by Machin stamps, respectively in 1969 and 1999. The common aspects of the two series are the four chosen castles, one for each country of the United Kingdom. |
| Face value | 2 Shilling and 6 Penny |
| Catalog code (Scott) | 309 |
| Series | Castle series |
| Place in series | 1 |
| Stamp colour | Dark Brown |
| Watermark | St Edward's Crown and E 2 R Multiple |
| Stamp use | Definitive stamp |
| Issue date | 23/09/1955 |
| Designer | Lynton Lamb |
| Perforation | 11x12 |
| Height | 27.00 mm |
| Width | 44.00 mm |
| Catalog prices | Used stamp $2.25 Unused stamp $12.50 |
