Bolivian Post Horn Stamps

Bolivian Post Horn Stamps

Post horns are small signal instruments that were carried by postal riders in the eighteenth and nineteenth centuries. The rider would blow the horn to announce the arrival (and departure)…
Oaxacan Cathedral Organ Stamp

Oaxacan Cathedral Organ Stamp

The Oaxacan cathedral organ is on a 2013 stamp from Mexico. Organ stamps are fairly common and a great resource into their variety is the Pipe Organs of the World…