Compare: Professor Birch

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Same name, different sleeves. Signal compares each row against the reference printing's recent market price.

By printing

signal vs primary
PrintingMarketListed midDealer buy
Foilprimary
$8.75
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—

Each price is compared against the primary printing's recent market price.

Same name across sets

SetPrimary printingMarketSignal vs reference
Professor BirchPower KeepersFoil$2.94-66%
Professor BirchPower KeepersNormal$0.65-93%
Professor BirchPower KeepersFoil$2.94-66%
Professor BirchRuby And SapphireFoil$3.54-60%
Professor BirchRuby And SapphireNormal$0.42-95%
Professor BirchRuby And SapphireFoil$3.54-60%

Reference: Emerald · Foil $8.75.