Dutch dealers catalogue: Netherlands and colonies. Stanly Gibbons: Great-Brittan and colonies. Michel: Germany former Eastern-Europe Asia Europe.
Yvert & Tellier: France and colonies Worldwide. The item "Colombia stamps 1921 YV Airmail 32 PAIR strong misperforation MNH/MLH VF" is in sale since Saturday, November 12, 2016. This item is in the category "Stamps\Latin America\Colombia". The seller is "inverstamps" and is located in custom.This item can be shipped worldwide.