Guides
22 guides from Slabbr.
- Does a COA guarantee a trading card is authentic
Collectors often see a COA and assume a card is genuine. This page explains what a COA is, its limits, and practical steps you can take to verify trading cards.
- How is a card grade determined
Card grades show the condition of a trading card as judged by a professional grader. The grader inspects the card for specific condition factors, records an identifier, and assigns a single grade that reflects overall condition for collectors of baseball, basketball, football, hockey, soccer and other trading cards.
- How many basketball cards in 1986-87 set
This page explains exactly how many cards are in the 1986-87 Fleer basketball base set and how collectors identify and track those cards.
- How many cards are in the 1952 baseball set
Short answer up front: the 1952 Topps base set contains 407 cards. Below you will find what that count means for collectors, which cards to watch for, and how to identify and grade cards for trading or sale.
- How many millimeters is a standard trading card
A standard modern trading card measures 63.5 mm by 88.9 mm. That size is the common, portrait-format dimension used for most trading cards from sports sets like baseball, basketball, football, hockey and soccer, and it matters to collectors for storage, grading and scanning.
- How should a collector catalog their cards
A practical catalog helps a collector track condition, provenance and availability for trading. This page gives concrete fields and routines to record each card so you can find, compare and move inventory with confidence.
- How to identify basketball rookie cards
This guide shows clear, practical steps to confirm whether a basketball card is a rookie card. It covers visual identifiers, common traps, authentication and how grading affects a card's status so you can document and trade confidently.
- How to pack a graded PSA card for shipping
Step-by-step instructions to protect a PSA-graded trading card for shipping: prepare the slab, add rigid support and padding, and choose secure outer packaging so the grade and identifier arrive intact.
- How to read card grade numbers
Card grading assigns a simple numeric label to describe a card's condition. Read the number as a quick indicator of how close to perfect the card is, and use the inspection steps below to verify corners, edges, centering and surface before you buy, sell or trade.
- How to ship trading cards safely
Follow a simple, repeatable process to protect cards during transit. This guide covers inspection, packing materials, step-by-step packing, documentation, and final checks so your baseball, basketball, football, hockey or soccer trading cards arrive in the same condition a collector expects.
- How to verify trading cards authenticity
A practical, step-by-step guide to confirm whether a trading card is genuine. Covers visual checks, documentation, identifier checks, scans and third-party grading so collectors can make informed decisions.
- What are the four things graders check on a trading card
When a collector submits cards for grading, graders inspect four physical factors that determine a card's grade. These checks apply to trading cards across baseball, basketball, football, hockey and soccer, and they are the same whether you use psa or another service.
- What do PSA card grades mean
PSA card grades describe a card’s condition as judged by professional graders. Knowing what those grades mean helps collectors evaluate cards from baseball, basketball, football, hockey and soccer collections before buying, selling, or trading.
- What does a 1 of 1 serial number mean on a trading card
'1 of 1' that denotes single copy. On a trading card this serial number is the printed identifier showing that only a single copy of that design or print exists. A '1 of 1' single unique card is distinct from numbered runs where multiple copies share the same sequence; collectors of baseball, basketball, football, hockey and soccer cards treat it as the ultimate rarity marker.
- What does COA mean on a trading card
COA stands for Certificate of Authenticity. Read this page to learn what a COA usually indicates, what it does not prove, and how collectors verify an autograph or rare insert on cards from baseball, basketball, football, hockey or soccer sets.
- What does parallel mean on football cards
A parallel is an alternate version of a trading card produced alongside the regular base set. Parallels use different colors, finishes, or serial numbers to distinguish them from base football cards and exist across sports like baseball, basketball, hockey and soccer.
- What does PSA 10 Gem Mint mean
PSA 10 'Gem Mint' is a specific PSA grading designation for trading cards. This page explains what it means for a card's condition, how examiners check for it, and what collectors should expect when they see the label.
- What does PSA 9 Mint mean on a graded card
PSA 9 'Mint' is a specific numeric grade assigned to trading cards after professional grading. This page explains exactly what that grade indicates, how it fits on the 1-10 grading scale, and what collectors look for when buying, selling, or scanning graded cards.
- What does RC mean on a trading card
RC is a common marking collectors see on sports cards. This page explains what RC means, how to spot it on cards across baseball, basketball, football, hockey and soccer, and why it matters for collectors and grading.
- What is a numbered parallel trading card
A numbered parallel trading card is a version of a standard card that is printed in a limited run and bears a visible serial number. This page explains what it means, how to spot one, and why collectors treat numbered parallels differently.
- What is a rookie card in trading cards
A rookie card is the earliest widely recognized trading card of a player. This page explains how rookie cards are defined, how to identify them, and what collectors look for across baseball, basketball, football, hockey and soccer cards.
- What is the size of modern trading cards
Modern trading cards follow a consistent size so sleeves, binders and display pages fit predictably. This page gives the standard dimensions and explains why the size matters for collectors, scanning, storage and grading.