Antiye:Stamped paper: Postcards bearing imprinted stamps.

Blok:The group of stamps consist of unremoved at least 4 stamps side by side or one over another.

Perforation:Serrated edges of stamps left at the end of perforation.

Value:Amount of money shown in figures and additionally in writing on some of valuable papers used in mail and indicating their sales price or any one of stamps presented in a series.

Issuing:Issuing a valuable paper or stamp

Error:A defect occurred at the time of issuing or perforation of valuable papers.

Specimen:The draft prints prepared by the printing office in order to show the last condition of the print. They are also called specimen of preparation. It is important in terms of seeing preparation of stamp. They are not sold; kept in the museums and archives of postal administrations.

Philatelic Envelope: Special envelopes bearing the first day and special date stamp (postmark).

Watermark:A special design and mark such as inscription, figure or motif in some paper of stamps, visible when paper is held up to the light. It is used for preventing printing of fake stamps.

Format:Size in mm. of a picture on the stamp (margin is not included) (e.g.25x40mm)

Souvenir Sheet:Small sheet of stamps on which one or several stamp(s) perforated or unperforated and bearing usually inscriptions at its sides.

Envelope with the first day stamp: Special envelopes bearing inscriptions and designs and stamped with the first day stamp related with the subject, affixed thereon a series of commemoration or continuous stamp.

Legend:Inscriptions on a stamp.

Maximum Card:Philatelic card with special postmark bearing a magnified picture on a postage stamp and carrying additionally the stamp itself as printed or affixed thereon.

Margin:Non-printed sections left outside of the main body of stamp sheets and commemoration blocks and stamps.

Special Day Cover :Special envelopes on which a special philatelic stamp is affixed, bearing inscriptions and designs related with the subject.

The envolepe marked with special date: They are the philatelic envolopes bearing commomeration stamp, continuous postage stampsor stamp prints and have no design regarding the mark's content and marked with special date.

Perforation:Punching sheets of postal stamps and stamps on commemoration blocks for easy removal from one another.

Portfolio:Philatelic file in which commemoration stamp issued for a commemoration, related FDCs (first day cover), card or other publications are placed.

Postcard:Cards with or without pictures, bearing print of stamp, etc. showing postage rate and the inscription "postcard".

Center:Equality of opposite margins of a stamp, i.e. frame around a picture of stamp is issued just in the center of the sheet of stamp.

Series:A set involving each and every value of stamps issued with the same name.

Postage stamp overprint: It is issuing job of new inscriptions, figures or designs on valuable papers or stamps by changing or unchanging values in order to commemorate another event or changing the purpose of issuing the stamp.

Charniére:Small pieces of glued paper used for sticking stamps in album.

T Stamp:Stamps which are used for mails with unpaid or underpaid charges received from addressees or from their senders when necessary. They can not be used for other postal services. At present, we do not have such kind of stamp, however it is possible to be issued in the future.

Thematic Stamp:Stamps bearing pictures of certain subjects such as bird, flower, sports, famous people, paintings, etc.

Tête Bêche:It is called for two stamps printed as reverse to one another. They may be printed as reverse head to head, reverse side by side and reverse foot to foot. "Tête Bêche" stamps may be used in payment of postage rates also one by one. Stamps printed in 1956 for commemoration of XXV. International Anti-Alcoholism Congress are example of such stamps.

Circulation:The number of issues of stamps and valuable papers.

Air-Mail Stamp :Stamps which are printed on postage rates envisaged for mailing articles to be forwarded by airmail on the basis of postal tariff and bearing pictures related with aviation on them.

Variety:Issuing of a stamp in various forms. Its difference from the "error" is that "variety" is to be issued under the control of the postal administration and in numerous quantities.