Browse an issue of Mystic’s Stamp Showcase or MysticStamp.com and you may notice offers for First Day Covers described as made by Fleetwood, Mystic, “Silk” or “Common.” Those terms all refer to the cachet maker that produced the cover. Here’s the differences:
Fleetwood began producing First Day Covers in 1941 with the Vermont Statehood issue. Mystic acquired Fleetwood in 2007 and is proud to continue its tradition of excellence today. Many Fleetwood cachets (designs) are full-color works of original art. Most Fleetwood First Day Covers feature interesting information about the stamp subject. Fleetwood First Day Covers are produced for both commemorative and regular issue U.S. stamps of all denominations. Fleetwood covers may be addressed or unaddressed.
Mystic began producing First Day Covers in 1992 with the Pledge of Allegiance issue and ended in 2007 with the Henry W. Longfellow issue. With few exceptions, Mystic First Day Covers have full-color cachets, neat information about the stamp subject, and feature commemorative U.S. stamp issues at the first class rate.
“Silk” First Day Covers produced by Colorano were introduced in 1971 with the America’s Wool issue and finished in 2016 with the Snowflakes issue after Mystic purchased Colorano’s stock in February 2016. Each color illustration is printed on satin-finish fabric, fastened to the cover and surrounded by a luxurious gold embossed border. “Silk” First Day Covers feature regular issue and commemorative stamps. They have no additional information about the stamp subject.
Mystic and Silk First Day Covers are unaddressed.
Classic First Day Covers are from various sources and can date from the 1920s to the present. Classic covers are interesting because of the diversity of their cachets. Classic First Day Covers may be addressed or unaddressed, illustrated or unillustrated with printed or rubber design in one or more than one color. They may feature regular issue or commemorative stamps. (Important note – because of their nature, Classic cover cachets will likely vary from those pictured.)