Coils

Coils:
Stamps issued in rolls for use in affixing or vending machines.
Commemoratives: ...

Coils Stamps issued in rolls (one stamp wide) for use in dispensers or vending machines.
Color Shift A variety where one or more colors of a multicolored stamp are misaligned.

Test Coils
Coil Test Stamps were created primarily to test tension chocks in coil vending equipment and stamp affixing machines. In addition, they can be used for training purposes and mailing demonstrations.

Stamp coils
In the 20th century, sheet stamps were replaced with the more handy strips of stamps rolls; these came to be known as stamp coils. Stamp coils were one stamp-wide and were dispensed using a coil stamp dispenser.

Covel Coils - privately perforated Second Bureau Issue coil stamps made by the Covel Manufacturing Company of Benton Harbor, Michigan using a Rossback perforator.

Coils
Coils just look better displayed as multiples. A pair of attached coil stamps shows off the straight edge better than a single stamp. Many collectors save the Joint Line Pair on older coils.

Coils - Stamps sold in rolls. Two opposite edges (most often the top and bottom) usually have straight edges rather than perforations. Coils are issued for use in dispensers or vending machines or for automatic affixing equipment.

Coils are stamps that are processed into a single row and sold in rolls. United States coils have two parallel straight edges and two parallel perforated edges. The stamps shown in the middle and right of Figure 3 are coil stamps from the U.S.

Coils will typically have two opposite straight edges. Booklet stamps often have one or more straight edges due to trimming by the knife-guillotine in the final making up.

As coils grew in popularity, the demand for official coils grew as well, and in 1908 the USPS started producing its own coils, but it still used the same method private parties had, i.e.

City-Type Coils: Used primarily in large cities where large numbers of precancels were required, but not enough to warrant a Bureau print. Special coil precanceling machines are supplied by the Post Office Department.

stamps issued in coils of 500 or 1,000, made for imperforate sheets of the regular issues, saved in strips of four or longer to authenticate.

Although many collectors still collect coils in this format, a larger number of these collectors prefers the PNC5 format.

Rare PNCs (Plate Number Coils) used on cover, an early use stamp that slipped out of a post office, perhaps some clever advertising covers.

Coil: Stamps processed in a long single row and prepared for sale in rolls, often for dispensing from stamp-vending and affixing machines. Some coils, including most U.S.

Coil: A stamp prepared in rolls for sale and use in stamp-vending and affixing machines. Coils are often imperforate on two parallel sides and bear distinctive perforations. Some are numbered on the back to distinguish them from sheet stamps.

Pair of coil stamps, joined vertically or horizontally in the case of the City Type Coils, and horizontally only in Bureau issues. In Bureaus, one also finds gap pairs (qv), line pairs (qv), and combination (line and gap) pairs (qv).
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Stamps prepared in rolls or coils to be dispensed by shops or vending machines.
Commemorative Stamps ...

A roll of stamps is called a "coil", because they coil up into a ball and hide if you set them down! If you know someone who buys stamps in coils, have them look carefully at them to make sure they all have perforations where they should be.

Coil Line Pair - Pair of stamps showing a colored line caused by a gap where the curved printing plate is joined.
COILS - Stamps produced in rolls of 100-500 stamps for use in various postal machines.

See also: Stamp, Used, Perforation, Cover, Plate