Pokémon TCG · XY-By: Collection Y · Japanese · #55
Professor's Letter #55 (Japanese) price
XY-By: Collection Y55Market prices
90-day range · TCGplayer
Professor's Letter (#55, Uncommon) is a card from the Japanese Pokémon set XY-By: Collection Y. Near Mint, it has a market price of about $2.00 on TCGplayer and €0.56 on Cardmarket (updated September 20, 2026). Over the last 7 days, its TCGplayer market price fell 32.2% and the Cardmarket price trend rose 0.0%. Over the last 30 days, its TCGplayer market price fell 32.2% and the Cardmarket price trend fell 3.5%. Over the last 90 days, its TCGplayer market price rose 0.0% and the Cardmarket price trend fell 18.8%. Its 90-day TCGplayer market price range is $2.00 to $2.99. Its 90-day Cardmarket price trend range is €0.56 to €0.69. Among the 12 Uncommon cards of XY-By: Collection Y, it is the sixth most valuable. Converted to dollars, its Cardmarket price is 68.6% lower than its TCGplayer price.
Professor's Letter #55 prices by finish
| Finish | TCGplayer | Cardmarket |
|---|---|---|
| 1st Edition | $2.00 | €0.56 |
Near Mint prices: TCGplayer market price, Cardmarket price trend, updated September 20, 2026.
Price changes by finish
| Finish | Price | 7 days | 30 days | 90 days | 90-day range |
|---|---|---|---|---|---|
| 1st Edition | TCGplayer market price | −32.2% | −32.2% | +0.0% | $2.00 – $2.99 |
| 1st Edition | Cardmarket price trend | +0.0% | −3.5% | −18.8% | €0.56 – €0.69 |
Change of the same Near Mint price (same market, same finish) against 7, 30 and 90 days ago; range: its lowest and highest daily value over the last 90 days. Only where the price history supports a figure; lowest listings have none.
Follow your own copies, graded or raw, and what they are worth in Sparkl.
Professor's Letter #55 price history
About this card
- Number
- 55
- Rarity
- Uncommon
- Finishes
- 1st Edition
- Rank in its rarity
- 6th of 12 Uncommon cards
- Against its rarity’s median
- 1.1× the median ($1.75)
- Cardmarket vs TCGplayer
- −68.6% after conversion ($1.1208 per euro)
- Released
- December 13, 2013
- Print language
- Japanese
How this page is made: Near Mint prices from TCGplayer and Cardmarket, refreshed daily; ranks, medians and comparisons are computed by Sparkl from those prices.
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Most valuable XY-By: Collection Y cards
- Blastoise EX#61 · Super Rare · $80.00
- M Blastoise EX#15 · Double Rare · $55.94
- Yveltal EX#63 · Super Rare · $35.00
- Emolga EX#62 · Super Rare · from $89.00
- Blastoise EX#14 · Double Rare · $11.08
- Skitty#48 · Common · $10.00
The 10 most valuable · See all 63 cards in XY-By: Collection Y
Next to Professor's Letter #55 in XY-By: Collection Y
- Bidoof#50 · Common · $5.00
- Bibarel#51 · Common · $3.29
- Double Colorless Energy#60 · Uncommon · from $3.50