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About This Set
The 1909 Boston Sunday Post Supplements is a Baseball card set from 1909, representing the flagship annually issued set, the cornerstone of each collecting year. This set comes from the pre-war era — tobacco inserts, caramel cards, gum cards and candy issues defined collecting in this period. Cards from this set connect collectors to an authentic moment in Baseball history — the players, teams, and storylines of 1909.
Buying Guide
When buying 1909 Boston Sunday Post Supplements cards on eBay, focus on condition first — for vintage sets (pre-1980), even minor corner wear significantly impacts value. For key star player cards from this set, PSA or BGS grading is strongly recommended before purchasing at significant prices. Common cards are widely available raw; HOF player cards and key rookies deserve authenticated, graded examples.
Investment Notes
Investment-grade cards from 1909 Boston Sunday Post Supplements include: Hall of Fame player cards in PSA 7+ condition, rookie cards of players who went on to significant careers, and short-printed or regional variations with documented scarcity. Always research the specific card's PSA population report before paying a premium.