Rare vinyl combines music history, manufacturing evidence, condition and collector demand. A useful conclusion should be traceable to identifiers on the physical release.
1. Use release-specific evidence
Use release-specific evidence should be evaluated against the exact release, country, format, label, catalog number, matrix/runout, packaging and condition. Preserve the physical evidence and avoid replacing identification with seller shorthand.
2. Plants changed marks
Plants changed marks should be evaluated against the exact release, country, format, label, catalog number, matrix/runout, packaging and condition. Preserve the physical evidence and avoid replacing identification with seller shorthand.
3. Contract pressing exists
Contract pressing exists should be evaluated against the exact release, country, format, label, catalog number, matrix/runout, packaging and condition. Preserve the physical evidence and avoid replacing identification with seller shorthand.
4. Do not infer country from one mark
Do not infer country from one mark should be evaluated against the exact release, country, format, label, catalog number, matrix/runout, packaging and condition. Preserve the physical evidence and avoid replacing identification with seller shorthand.