Hi Phil,
This appears to be an earlier revenue stamp, Forbin #20, from 1870-71.
Forbin says this has an overprint on the same basic stamp with "1870-71" and "CALLAO" although it doesn't give a picture of the surcharge.
Forbin #21 has a similar overprint but for the LIMA province rather than CALLAO.
I believe the El Callao is the name of the port in Lima, capital of Peru and a suburb of the of it as well..
re: Callao
Hi Phil,
This appears to be an earlier revenue stamp, Forbin #20, from 1870-71.
Forbin says this has an overprint on the same basic stamp with "1870-71" and "CALLAO" although it doesn't give a picture of the surcharge.
Forbin #21 has a similar overprint but for the LIMA province rather than CALLAO.
re: Callao
I believe the El Callao is the name of the port in Lima, capital of Peru and a suburb of the of it as well..