Proof 1c-30c 1861-66 Issues experimental plate proofs on various papers (betw. 63TC5-73TC), five different items, 1c block of four in Brown on starch coated paper, 2c and 3c decalcomania (latter in horizontal pair), 3c horizontal pair in Brown Red on experimental paper and 30c decalcomania in Orange on green, some have faults, otherwise very good-very fine lot