Lot 1877
1861, Paris Printing, very fine printing: 20 l. light blue on bluish in combination with 1862 20 l. light blue on bluish tied by numeral "67" to folded letter to Argos, boxed "insufficiently franked" and "20" in red, vertical fold through left stamp and slight abrasion, otherwise fine and attractive, certificate Simmermacher BPP
