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SlabTrackedGRADING ACADEMY / THE COLLECTOR’S FIELD GUIDE

A better eye for every grade.

Look closer. Learn to recognize comic defects with realistic specimens, precise guide lines, and hands-on inspection.

Apprentice
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LESSON 01 / Spine & structure

Spine ticks

Short stress marks extend inward from the folded spine. This example shows a color-breaking tick: pale paper is visible through the printed ink.

INSPECTION VIEWCOMIC / 001
1
Guide 1 locates the area shown in the detail lens.
DETAIL LENS
01

A fine break in the ink

The lens shows the same specimen and defect at a larger scale.

Inspection guide Illustrative scale

AI-generated fictional specimens with simulated defects. Print texture is illustrative; these are not certified grading examples.

01 / HOW TO INSPECT

Follow the evidence.

Follow the spine from top to bottom. Count the marks and record their length, especially near the staples.

02 / KNOW THE DIFFERENCE

Look beyond the first mark.

A color break stays pale as the viewing angle changes. A non-color-breaking stress line mainly changes the reflected light.

03 / GRADING CONTEXT

Consider the whole item.

Length, number, color loss, and the rest of the book all matter. A tick alone does not establish an exact grade.

CHECK YOUR EYE

Which observation identifies spine ticks?

Choose the defining visual cue to complete this lesson.

0 of 15 observations completed

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