2017-18 Prestige · autograph set

Old School Signatures

Cards 

19

Parallels 

4

tcdb sid 168757, heading "2017-18 Panini Prestige - Old School Signatures"; Total Cards 19, and all 19 card codes were listed and counted (OS-AEG, OS-CBP, OS-CML, OS-COL, OS-DSF, OS-DTH, OS-GGR, OS-GPT, OS-GRC, OS-JMB, OS-JSK, OS-KSM, OS-MAG, OS-MJS, OS-MPC, OS-RSK, OS-TDK, OS-TMG, OS-WBY) - header and rendered rows agree. Every row carries AU. THREE-WAY COUNT DISAGREEMENT: tcdb 19, cardboardconnection 20, sportscardchecklist "(18 Cards)"; no two agree. 19 IS WRITTEN, on this reasoning: all four of this set's own parallel tiers (Crystal, Crystal Gold, Crystal Blue, Gold) render a 20-code roster, and diffing those lists against the base tier's shows the single extra code is OS-THW - so cardboardconnection's 20 is the parallel roster. The base-runs-one-short-of-its-parallels shape is then independently confirmed on a second set: Prestigious Signatures renders 48 against its two parallels' 49, and sportscardchecklist reproduces 48/49/49 there. That makes 19 structural rather than a tcdb omission. sportscardchecklist's 18 stays unexplained. See G-004 and G-008. Evidence: https://www.tcdb.com/ViewSet.cfm/sid/168757/Old-School-Signatures-2017-18-Panini-Prestige-Basketball-Cards https://www.tcdb.com/ViewSet.cfm/sid/168758/2017-18-Panini-Prestige-Old-School-Signatures-Crystal-Basketball https://www.tcdb.com/Inserts.cfm/sid/164348/2017-18-Panini-Prestige https://www.cardboardconnection.com/2017-18-panini-prestige-basketball-nba-cards https://www.sportscardchecklist.com/sport-basketball/year-2017-18/index-panini-prestige/trading-card-checklists-and-product-information