1851 3d, 6d and 12d Heraldic Imperforates, the 3d has red "PAID" cancels and full to clear margins (small thins), the 6d has a light grid cancel in green and four large and even margins (crease), and the 12d has an oval grid cancel and full to clear margins (two small thins). Three stamps with great eye appeal and huge catalogue value. (Image)