Top Loader
A rigid plastic sleeve, typically 3″×4″, used to protect trading cards from corner and edge damage during storage and shipping. Top loaders are inserted card-first, often after the card is placed in a thinner penny sleeve. Standard top loaders accommodate ungraded cards. Larger sizes exist for thicker cards, vintage cardboard, and graded slabs. Always pair […]
Penny Sleeve
A thin, soft plastic sleeve used as the first protective layer for a trading card. Named for their original retail price (about a penny each), they protect against surface scratches but provide little structural protection. Best practice is to place the card in a penny sleeve, then a top loader, then store upright in a […]
Mint State (MS)
A coin grading designation used primarily by PCGS and NGC for uncirculated coins, abbreviated as MS followed by a number from 60 to 70 (e.g., MS-65, MS-70). MS-60 represents an uncirculated coin with significant marks; MS-65 represents a choice uncirculated coin; MS-70 represents a perfect coin with no flaws visible at 5x magnification. The price […]
Cracking Open / Crack-Out
The act of breaking open a graded card’s plastic slab to remove the card. Common reasons include cross-grading (resubmitting to a different grading service), regrading (hoping for a higher grade), or selling the card raw. Cracking destroys the original grading service’s chain-of-custody record. Once cracked, a card cannot be re-encapsulated under its original label — […]
Cross-Grade
The process of submitting an already-graded card to a different grading service for re-evaluation, typically without cracking the slab open. Most major services (PSA, CGC, BGS, SGC) offer a cross-over service that will only assign the new label if the card achieves at least the previous grade. Cross-grading is common when one service is perceived […]
Pop 1
A grading designation indicating that only one copy of a specific card or collectible exists at a given grade across the population reports of major grading services (e.g., PSA, BGS, CGC, SGC). Pop 1 cards command outsized premiums because they are demonstrably the finest known surviving example. Even a Pop 1 card of a relatively […]
Wax Pack
An unopened pack of trading cards sealed in waxed paper, typical of pre-1990 baseball, basketball, football, and hockey card production. Wax packs were eventually replaced by foil packs. Sealed vintage wax packs are highly collectible — both for the gamble of opening them and for sealed-state preservation. Authentic vintage wax shows specific aging characteristics that […]
Population Report
A public database, maintained by grading services like PSA, BGS, and CGC, listing how many copies of a given card or collectible have been graded at each grade level. The pop report is essential for understanding rarity at top grades. A card may have been printed in millions but have a population of only 10 […]
Print Run
The total number of copies of a collectible produced. Documented print runs are common for modern trading cards (often printed on the card itself, e.g., “#/99”), comics, and limited-edition books, but are rarely disclosed for vintage products. Smaller print runs typically command higher prices, but rarity alone doesn’t drive value — demand for the specific […]
Centering
The position of a card’s printed image relative to its borders, expressed as a ratio (e.g., 55/45 left/right, 60/40 top/bottom). Centering is one of the four sub-grades evaluated by PSA, BGS, CGC, and SGC, and is often the single most decisive factor between a Mint and Gem Mint grade. For pre-1980 cards, centering of 60/40 […]