1841 2d blue EIGHT examples on a cover to BELGIUM RARE

1845 (Mar 4) entire letter from Totteridge (London) to Belgium bearing 1841 2d blue plate 3 horizontal strip of four (LA-LD) pair (KB-KC) and two singles (KA and KD with double D). (Originally a Block of Eight) neatly cancelled by good strikes of the 15 numeral cancel interesting content in the letter of how the sender had struggled to forward a previous letter to the recipient demonstrating the difficulty of sending mail overseas. Vertical filing folds affecting franking. A very rare cover.