Los-Nr. 410

4 c. yellow in combination with 1865, 1 c. orange and 20 c. brown, tied by cds. "LUXEMBOURG 2 SEPT." (1879) to lettersheet to Lille with arrival mark; the 1 c. small separation fault, otherwise fine and fresh; a rare colour franking with scarce 4 c. yellow, certificate Böttger BPP (2016)