Observed rarity
Physical prints per exposure
“1 documented print” means one specific physical Type I photo has been identified so far. It does not prove only one survives.
Observed census — not an absolute population report
Babe Ruth
Questions this view can answer:
Census quality
Research signals
Specimen fingerprinting
Reverse & physical evidence census
Most-observed mark organizations in Pass 1
Observed marks are tied to specific physical RUTH-P specimens. Auction attribution alone is not treated as proof that a stamp appears on the reverse.
Card imagery
Card-source vs. other exposures
Coverage
Auction-house evidence
Population intelligence
Exposure population leaders
Deduplication
Repeat physical-photo appearances
0 exposures shown
Observed market
Sales timeline
Gold dots represent actual documented sales and the blue line shows the annual median. The broken Y-axis heavily emphasizes $0–$10K, then progressively compresses $10K–$50K, $50K–$250K and $250K+ so lower-priced Type I sales can be distinguished individually. The time axis begins in 2005.
Price level
Sale-price snapshot
High water marks
Highest observed sales
Resale history
Same photo, multiple appearances
Player-aware reverse / physical repository
Physical evidence census
Specimen-level reverse marks, dating clues and physical fingerprints
Core rule: photographer or auction-house attribution is not automatically a back stamp. A reverse mark is cataloged only when the published evidence explicitly documents it on the specific physical print.
Stamp dictionary
Observed mark variants
Observed frequency
Mark organizations
Counts reflect documented specimens in the current reverse-evidence pass, not an absolute surviving population.
Specimen dossiers
Documented physical photographs
0 records shown
Observed evidence only
No filters applied
Match ledger
Deduplication decisions
Next work
Research queue
Rarity gaps
Reported population vs. documented
Data model
What the numbers mean
ExposureUnique photographic image / negative-level image
→
PhotoOne physical piece of photographic paper
→
Auction appearanceOne time that physical photo entered the market
One exposure can have several Type I prints. One physical print can have several auction appearances. Those distinctions are what make the rarity census meaningful.