x3allamerican/cards-skills/1952-topps-baseball

Claude Code and agent skill by x3allamerican/cards-skills

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Use when evaluating 1952 Topps baseball cards. The flagship vintage post-war set with Mantle #311 as the headliner.

Install

npx vskill@latest install x3allamerican/cards-skills/1952-topps-baseball

SKILL.md

1952 Topps Baseball

1952 Topps is the most-collected vintage post-war set. Mantle #311 in PSA 9 sold $12.6M (2022). High-numbers (#311-407) are scarce.

Set structure

407 cards total, two print runs:

  • Series 1-6 (#1-310): more common, found in vending
  • High-numbers (#311-407): scarce, distributed late in season, many destroyed by dealers

High-numbers are 5-30× rarer than Series 1-6 in high grade.

Key cards

  • #311 Mickey Mantle: PSA 10 $12.6M, PSA 9 $3-5M, PSA 8 $400-600K, PSA 7 $150-250K
  • #312 Jackie Robinson: PSA 9 $800K-1.2M
  • #313 Bobby Thomson: PSA 9 $150K
  • #314 Roy Campanella: PSA 9 $200K
  • #407 Eddie Mathews (RC): PSA 9 $1.2-1.8M
  • Most commons in PSA 8 sell $100-1,000

Grade calibration

1952 Topps grades on vintage tolerances:

  • 65/35 centering acceptable for high grades
  • Era-typical wax stains lenient
  • Print defects forgiven if era-consistent
  • Trimming heavily penalized (common 1980s-90s restoration)

Where this fits in the X3 empire

Used in Concierge for any 1952 Topps submission.

Security

  • Security scanPassed, 90 of 100Pattern checks on the skill's files.
  • Model reviewPassed

Quality evaluation

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Source

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Works with

Any agent vskill installs to: 56 targets in all. These 39 have a page on this site.

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