1851. 2 RBS, greenish blue. FERSLEWS PROOF. Plate I, no. 65. Type 3. With burlage 1b (the final issue has 1a). Very fien and flawless copy without the normal thins. Originates from the sheet where the upper half is in the Postal Museum. Certs. Møller and Nielsen “EXCELLENT COPY” [ 2a ] [ (*) ]