If you collected Marvel comics in the 1970s and 1980s, you probably never noticed them. But if you were stationed on a U.S. military base, there is a chance your copies of Amazing Spider-Man, X-Men, and Avengers had something extra tucked inside: a multi-page advertising insert from Mark Jewelers, a jewelry company that targeted military personnel. These inserts created one of the most fascinating variant categories in the hobby.
What Are Mark Jewelers Inserts?
Mark Jewelers variants are not cover variants — the covers are identical to the standard direct or newsstand editions. The difference is inside: a glossy advertising insert, typically 8-16 pages, promoting rings, watches, necklaces, and other jewelry that could be purchased on military installment plans. The inserts were bound into the comic during printing, making them an integral part of the book rather than a loose flyer.
Why They Are Rare
Mark Jewelers copies were distributed almost exclusively through military PX (Post Exchange) stores on U.S. bases, both domestic and overseas. This means the print runs were a tiny fraction of the total — estimates suggest 2-5% of a given issue's run received the insert. Factor in that military readers were not typically collectors (many copies were read and discarded), and the survival rate for these variants is remarkably low.
The Collecting Boom
For decades, Mark Jewelers inserts were ignored. Most collectors either did not know they existed or did not care. That changed in the 2010s when variant collecting expanded beyond cover art differences. Collectors began recognizing that Mark Jewelers copies of key issues were genuinely scarce — and the census data backed it up. CGC census numbers for Mark Jewelers variants of major keys often number in the single digits.
- Identification: Open the comic and look for the bound-in jewelry advertising insert. The pages are typically glossy and heavier stock than the comic pages.
- Key titles: Mark Jewelers inserts appear primarily in Marvel titles from roughly 1975 to 1990, including Amazing Spider-Man, Uncanny X-Men, Avengers, Captain America, and Iron Man.
- Grading note: CGC labels Mark Jewelers variants on the slab, which has significantly increased collector awareness and demand.
Mark Jewelers variants are a reminder that some of the most valuable collectibles are the ones nobody thought to save.
If you have old Marvel comics from the Bronze or Copper Age, it is worth opening them up and checking for that jewelry insert. You might be sitting on a hidden gem — literally.