{
 "schemaVersion": 1,
 "url": "https://www.moonstonehq.com/card/basep-42",
 "dataUrl": "https://www.moonstonehq.com/card/basep-42/data.json",
 "asOf": "2026-09-27",
 "card": {
  "id": "basep-42",
  "name": "Pokémon Tower",
  "number": "42",
  "printedTotal": 53,
  "setName": "Wizards Black Star Promos",
  "language": "en",
  "illustrator": "Keiji Kinebuchi",
  "image": "https://assets.tcgdex.net/en/base/basep/42/high.webp",
  "tcgplayerProductId": "88240"
 },
 "marketPrice": {
  "value": 14.34,
  "currency": "USD",
  "condition": "near mint",
  "asOf": "2026-09-27",
  "source": "TCGplayer market price, recorded daily"
 },
 "psa10": {
  "price": 108,
  "currency": "USD",
  "sales": 5,
  "kind": "recent",
  "windowDays": 90,
  "median": 108,
  "lastSale": null,
  "divergesFrom": null,
  "asOf": "2026-09-25"
 },
 "psa9": {
  "price": 45,
  "currency": "USD",
  "sales": 7,
  "kind": "recent",
  "windowDays": 90,
  "median": 45,
  "lastSale": null,
  "divergesFrom": null,
  "asOf": "2026-09-25"
 },
 "gradedMedians": [
  {
   "company": "CGC",
   "grade": "10",
   "median": 55,
   "currency": "USD",
   "sales": 8,
   "asOf": "2026-09-25"
  },
  {
   "company": "CGC",
   "grade": "8",
   "median": 14,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-25"
  },
  {
   "company": "CGC",
   "grade": "8.5",
   "median": 7.5,
   "currency": "USD",
   "sales": 4,
   "asOf": "2026-09-25"
  },
  {
   "company": "CGC",
   "grade": "9",
   "median": 14.19,
   "currency": "USD",
   "sales": 4,
   "asOf": "2026-09-25"
  },
  {
   "company": "PSA",
   "grade": "10",
   "median": 89,
   "currency": "USD",
   "sales": 15,
   "asOf": "2026-09-25"
  },
  {
   "company": "PSA",
   "grade": "6",
   "median": 12.5,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-25"
  },
  {
   "company": "PSA",
   "grade": "7",
   "median": 42.75,
   "currency": "USD",
   "sales": 2,
   "asOf": "2026-09-25"
  },
  {
   "company": "PSA",
   "grade": "8",
   "median": 28.04,
   "currency": "USD",
   "sales": 8,
   "asOf": "2026-09-25"
  },
  {
   "company": "PSA",
   "grade": "9",
   "median": 37.5,
   "currency": "USD",
   "sales": 22,
   "asOf": "2026-09-25"
  }
 ],
 "population": {
  "company": "PSA",
  "total": 802,
  "gem": 214,
  "psa9": 353,
  "gemRatePercent": 27,
  "asOf": null
 },
 "priceSeries": {
  "granularity": "daily",
  "points": 29,
  "firstDay": "2026-08-30",
  "lastDay": "2026-09-27",
  "return30dPercent": -3.6
 },
 "facts": [
  {
   "key": "marketPrice",
   "label": "Market price",
   "value": "$14.34",
   "number": 14.34,
   "unit": "USD",
   "basis": "TCGplayer market price for this printing, near mint",
   "asOf": "2026-09-27"
  },
  {
   "key": "psa10Median",
   "label": "PSA 10 90-day sold median",
   "value": "$108",
   "number": 108,
   "unit": "USD",
   "basis": "A 90-day median of $108 across 5 sales verified as this card",
   "asOf": "2026-09-25"
  },
  {
   "key": "psa9Median",
   "label": "PSA 9 90-day sold median",
   "value": "$45",
   "number": 45,
   "unit": "USD",
   "basis": "A 90-day median of $45 across 7 sales verified as this card",
   "asOf": "2026-09-25"
  },
  {
   "key": "psa10Premium",
   "label": "PSA 10 premium over raw",
   "value": "7.5x",
   "number": 7.53,
   "unit": "multiple",
   "basis": "The PSA 10 figure above (a 90-day median of $108 across 5 sales) divided by the raw market price",
   "asOf": "2026-09-27"
  },
  {
   "key": "psaPopulation",
   "label": "PSA population",
   "value": "802",
   "number": 802,
   "unit": "count",
   "basis": "Copies on the PSA registry, all grades",
   "asOf": null
  },
  {
   "key": "psaGemRate",
   "label": "PSA gem rate",
   "value": "27%",
   "number": 27,
   "unit": "percent",
   "basis": "214 of 802 submissions graded 10",
   "asOf": null
  },
  {
   "key": "recordedPricePoints",
   "label": "Recorded price readings",
   "value": "29",
   "number": 29,
   "unit": "count",
   "basis": "One reading per day between August 30, 2026 and September 27, 2026",
   "asOf": "2026-09-27"
  },
  {
   "key": "return30d",
   "label": "30-day price move",
   "value": "-3.6%",
   "number": -3.6,
   "unit": "percent",
   "basis": "Trailing 30 days of moonstone's own recorded daily series",
   "asOf": "2026-09-27"
  }
 ],
 "questions": [
  {
   "q": "How much is Pokémon Tower 42/53 from Wizards Black Star Promos worth?",
   "a": "$14.34 raw, as of September 27, 2026. That is the recorded TCGplayer market price for this printing in near mint condition, not an ask moonstone sets."
  },
  {
   "q": "What is a PSA 10 Pokémon Tower 42/53 worth?",
   "a": "$108, a 90-day median of $108 across 5 sales we have verified as this card. That is 7.5x the raw price."
  },
  {
   "q": "How many Pokémon Tower 42/53 has PSA graded?",
   "a": "802 copies sit on the PSA registry across all grades, and 27% of them came back a 10 (214 tens)."
  },
  {
   "q": "Is it worth grading Pokémon Tower 42/53?",
   "a": "At $14.34 plus PSA Standard $59.99 ($74.33 all-in), against a $108 PSA 10 and a $45 PSA 9 each netted for eBay's published selling fee, you need a 65% chance of a 10 to break even. The registry's recorded gem rate is 27%. Shipping and insurance, to PSA and to the buyer, are not counted. That is arithmetic on recorded figures and published fees, not advice."
  }
 ],
 "methodology": {
  "marketPrice": "The daily recorded TCGplayer market price for this exact printing, in USD, near mint. moonstone sells no cards and quotes no ask of its own.",
  "gradedMedians": "Medians of verified sold listings for that grade, never a multiplier applied to the raw price. Every median carries the number of sales behind it, and a figure built on fewer than 2 sales is reported as a single sale rather than as a median.",
  "population": "A snapshot of the PSA registry for this card. A gem rate is reported only when the registry row breaks out the tens; an absent breakdown is reported as absent, never as zero.",
  "priceSeries": "moonstone's own daily price tape, one reading per day. `points` is how many days we hold, not how many days the card has existed."
 },
 "license": "https://www.moonstonehq.com/legal/terms",
 "disclaimer": "moonstone is independent research and market data, not financial, investment, tax or legal advice. Collectibles are speculative, illiquid and volatile."
}