My most recent purchase and a stamp that’s been on my must have list for a long, long time. On my recent Europe and UK trip I visited Stanley Gibbons and they kindly showed me some of their modern UK rarities, one of which was SG679a, 3d 1965 Post Office Tower with the olive-yellow omitted. This error is a progressive error, that is, some stamps show partial omission and some complete. Readers, I bought it. #errorstamps #stampcollecting #ukstamps #gbstamps #philately #stanleygibbons