Stampfinder B01

Next: is the stamp overprinted or surcharged?

Yes
An overprint is a second printing on a stamp design, often in black or red ink, sometimes also covering old data. If it changes the denomination/value of the original stamp, it is a surcharge.

If the surcharge is a suspected currency value or just a numeral only:

Click here:

Be aware that there may be nothing changing the country or usage.
 * If there is also a plus in front of a number or value, it is now a semipostal of the country shown on the stamp. If there is a Red Cross, it may be either a semipostal or postal tax stamp.

For all other overprints or surcharges:

Using the first letter of the overprint or surcharge, select the appropriate button below.
 * Do not use CORREOS, CORREOS DE, CORREIO, POST or POSTES, which just means "post/mail".
 * Do not use ETAT DU ("state of"), REPUBLIQUE DU, REPUBLICA, RESPUBLIKA, REPUBLIC.









No
Using the first letter of the suspected country name, select the appropriate button below.
 * Do not use CORREOS, CORREOS DE, CORREIO, POST, POSTA, POSTE or POSTES, which just means "post/mail", or PTT.
 * Do not use ETAT (DU) ("state of"), REPUBLIQUE DU, REPUBLICA (DE), RESPUBLIKA, REPUBLIC.