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← Cert #000035288

Autograph Authentication Report

Granite Grant

2024 Mutagen Canister Kids Stickers Open Edition - Artist Mark Pingitore Auto · #35a

Authenticated Crown Grading · reviewed Nov 3, 2026

Findings

Signer
Mark Pingitore
Autograph
Signed directly on the card, front side
Handwriting
Matches the known signatures it was compared with. (8 known signatures)
Printed or copied?
In the slab photo, the ink reads as a distinct blue that sits over the printed sky. No halftone or dot pattern is visible in the signature at this resolution, and the line shows natural width variation. However, a printed facsimile cannot be ruled out from a photo through the slab. Gloss and sheen, ink pooling and stroke overlap must be checked physically.
Decision
Authenticated by Crown Grading after staff review.

Signature comparison

This card. The signature as cropped from the slab photo (front).

Below, the known examples Crown compared it with. Examples with stronger proof (signed in front of staff, or certified by an independent authenticator) carry the most weight.

R1
Crown (reviewed)
Crown cert 000069732
R2
Crown (reviewed)
Crown cert 000035410
R3
Crown (reviewed)
Crown cert 000035413
R4
Crown (reviewed)
Crown cert 000035416
R5
Crown (reviewed)
Crown cert 000035419
R6
Crown (reviewed)
Crown cert 000035422
R7
Crown (reviewed)
Crown cert 000035425
R8
Crown (reviewed)
Crown cert 000035431

Feature by feature

FeatureThis cardKnown examplesResult
Overall form and proportionsAbbreviated two-part signature: a compact angular 'M' zig-zag with a short trailing stroke, then a gap, then a tall 'P' with a looped bowl and a short 'gt'-type finish with a crossing stroke.R1–R8 all show the same two-part abbreviated structure: zig-zag 'M' cluster, gap, tall 'P', then a compressed terminal group with a t-cross.Match
Slant and baselineWritten roughly vertically along the card's right edge. Relative to its own axis it shows a moderate right slant and a fairly level baseline.Moderate right slant with a level to slightly rising baseline (R1, R3, R6, R8).Match
Letter constructionThe 'M' is made as a rapid sharp-angled zig-zag. The 'P' has a tall upright staff with the bowl looped back. The terminal letters are compressed into a looped 'g'-like form with a cross stroke.Same angular 'M' (R1, R4, R8 are especially close). The 'P' staff and bowl match R1, R7 and R8, and the terminal compression matches R3, R6 and R8.Match
Connecting strokesThe 'M' group connects internally. There is a lift before the 'P', and the 'P' flows into the terminal letters.Same lift between the first-name and surname groups throughout R1–R8.Match
Starting and ending strokesStarts with a quick upstroke into the 'M'. Ends with a horizontal cross stroke that appears tapered.Tapered entries and a horizontal exit or cross stroke (R1 long exit, R8 extended underline-like exit, R6 short exit).Natural variation
Line quality and speedAt the available resolution, the strokes appear fluid with no visible tremor or hesitation.Fast, fluid lines in all references.Match
Pen pressure patternFairly even medium-blue line, with slight width variation on the downstrokes. Resolution is limited.Felt- or gel-type pens with modest variation. Ink colour varies between blue and black across stickers.Natural variation
SpacingClear gap between the 'M' group and the 'P' group.Same gap pattern in R1–R8.Match
Flourishes and underlinesNo separate underline. The terminal cross stroke serves as the finish.No underline. Some examples extend the final stroke (R1, R8).Natural variation
Placement and sizePlaced vertically in the open blue sky area to the right of the figure, sized to fit the card's width margin.The sticker references are cropped, so their placement is not determinable. R1 sits horizontally over the artwork.Not assessable

Examiner notes

Our card is a 2024 Mutagen Canister Kids open-edition sticker (No. 35a) signed by the artist. All references are contemporary. R2–R8 are from the parallel Nintendopes open-edition sticker line, and R1 is from a Magic Marker Art Horrorible Kids series. No meaningful era gap exists, so differences should come from pen, surface and signing speed rather than evolution of the signature.

How Crown authenticates autographs: the signature is compared with known examples gathered from Crown's own authenticated cards, independent authenticators and public listings, measured by software, examined by an AI forensic model, and signed off by Crown Grading staff. The decision above is Crown's.