Buy Stamps and Stamp Collections with Stamp Collection Center
Buy online or call: +1 310 699 5690

Glossary of Philatelic Terms O

 Click on a letter to see the terms beginning with that letter

A | B | C | D | E | F | G | H | I | J | K | L | M

N | O | P | Q | R | S | T | U | V | W | X | Y | Z

 


 

Obliteration: A cancellation intended solely to deface a stamp-also called a killer.

Obsolete: A stamp no longer available from post offices, although possibly still postally valid.
 
Occupation issue: An issue released for use in territory occupied by a foreign power.
 
Off-center: A stamp design that is not centered in relation to the edges of the stamp.
 
Offset: A printing process that transfers an inked image from a plate to a roller. The roller then applies the ink to paper.
 
OHMS: Abbreviation for On His (or Her) Majesty's Service. Used in perfins, overprints or franks to indicate Official use in the British Commonwealth.
 
Omnibus issue: An issue released by several postal entities to celebrate a common theme.
 
On paper: Stamps (usually postally used) that are affixed to portions of original envelope or wrapper.
 
On piece: A stamp on a portion of the original envelope or wrapper showing all or most of the cancel.
 
Original gum: The adhesive coating on a mint or unused stamp or envelope flap applied by a postal authority or security printer, usually before the item was issued.
 
Overprint: Any printing over the original completed design of a stamp.
 
Oxidation: Darkening of the ink on certain stamps caused by contact with air or light.
 
OG: The adhesive coating on a mint or unused stamp or envelope flap applied by a postal authority or security printer, usually before the item was issued. 

Menu

Feedback Form
Leads to Insight