Professor's Letter XY-By: Collection Y · 055/060

Japanese printUncommon

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Condition

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Price history

Near Mint, raw. US dollars.

Quote or market figureSoldUnder 10 sales, evidence onlyGuide

Grading

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Call

The dated call

Pro

Market Report

Observed November 4, 2026

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Research

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This card and its species

Set and species

Tournament play

XY-By: Collection Y

Set

Full XY-By: Collection Y set page

Recorded data

Professor's Letter #055/060

Every recorded figure, with its source and day

Professor's Letter #055/060 from XY-By: Collection Y has no recorded market price on moonstone yet.

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Professor's Letter market reportVerdict, comps and cohort context, rebuilt daily.All XY-By: Collection Y pricesEvery card in the set, priced off the same tape.XY-By: Collection Y set reportHow the whole set has moved and what leads it.This week's biggest moversThe widest recorded moves across the catalog.All market reportsEvery card and set we publish a dossier on.How our calls scoredThe public ledger of every call, win or lose.Every Pokémon setThe full set index, oldest to newest.

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