1861 2c Blackjacks group, comprising 29 covers and one used 2c 1863 strip of four. Highlights include two E. Grill (Scott 87) items, one used on a partial printed matter wrapper to France, two F. Grill (93) covers. Additional notable material includes advertising covers franked with No.73, sheet margin and guideline copies, a range of drop-letter uses, several examples with fancy cancels. Numerous $50-$100+ retail value items, mixed condition. A useful and diverse group ideal for the specialist or dealer