Postage stamps and postal history of Cundinamarca
Cundinamarca is a department of Colombia, one of the original nine states of the "United States of Colombia". As with the other states, Cundinamarca once had the right to issue its own postage stamps, and it issued stamps with the state's coat of arms, starting in 1870 and ending in 1904.
Source: Wikipedia — Postage stamps and postal history of Cundinamarca (CC BY-SA 4.0)