GB Stamps KGV SG323 bluish green Die A SG326 bluish green Die B. I have been a stamp collector for over 50 years.This stamps shown here were bought from either Stanley Gibbons, Spinks or Grosvenor auctions of London. I have decided to sell most of my collection now. The item "GB Stamps KGV SG323/326 1/2d Set of 2 stamps 1911 Un-Used Un-Mounted Mint" is in sale since Friday, June 19, 2020. This item is in the category "Stamps\Great Britain\George V". The seller is "detow61" and is located in Glasgow. This item can be shipped to United Kingdom.