Professor's Letter #146a (Holo) — BREAKthrough

PriceCharting market prices as of 2026-10-20:

Market context: ungraded price +14.3% over 30 days. +14.3% over 90 days.

More from BREAKthrough

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Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-breakthrough/pokemon-breakthrough-professor-s-letter-holo-146a