envelopes
61Cut square (philately) — A Bahamas four pence imprinted stamp cut square from a piece of postal stationery. In philately, a cut square is an imprinted stamp cut from an item of postal stationery such as a stamped envelope, postal card, letter sheet, letter card, aerogram …
62Paper knife — Bakelite letter opener A paper knife or letter opener is a knife like object used to open envelopes or to slit uncut pages of books. Electric versions are also available, which work by using motors to slide the envelopes across a blade. These… …
63Windowed envelope — US Patent 701,839 for a windowed envelope …
64ISO 216 — ISO 269 sizes (mm × mm) C Series C0 917 × 1297 C1 648 × 917 C2 458 × 648 C3 324 × 458 C4 229 × 324 C5 162 × 229 C6 114 × 162 …
65Postage stamp — A postage stamp is an adhesive paper evidence of pre paying a fee for postal services. Usually a small paper rectangle or square that is attached to an envelope, the postage stamp signifies that the person sending the letter or package may have… …
66Supernova — This article is about the astronomical event. For other uses, see Supernova (disambiguation). Multiwavelength X ray, infrared, and optical compilation image of Kepler s supernova remnant, SN 1604. A supernova is a stellar explosion that is more… …
67Paper size — A size chart illustrating the ISO A series and a comparison with American letter and legal formats …
68Christmas card — For the album from The Partridge Family, see Christmas Card (album). For the television film, see The Christmas Card. Some Christmas cards A Christmas card is a greeting card sent as part of the traditional celebration of Christmas in order to… …
69Postal stationery — A piece of postal stationery is a stationery item, such as an envelope, letter sheet, post card, lettercard, aérogramme or wrapper, with an amount of postage preprinted on it. The preprinted stamp, or indicium , is usually at the rate required… …
70Zodiac Killer — For the New York City Zodiac copycat, see Heriberto Seda. For the Japanese Zodiac copycat, see Seito Sakakibara. Zodiac Killer A sketch of the Zodiac Killer based on witness testimonies Background information Birth …
