Crystal

Where it was sold

Hobby

How we know: a source states this channel exclusively.

Applies to

the Old School Signatures set

Notes

tcdb sid 168758, heading read back as "2017-18 Panini Prestige - Old School Signatures Crystal" - sid confirmed against the page's own heading, not taken from Inserts.cfm alone. Total Cards 20, and 20 rows rendered and counted. Distinct flag-token set enumerated over EVERY row of the tier, not sampled: {AU} - uniform, zero variable rows. Positive discriminative test inside this same set family and on this same endpoint: the Crystal Gold sid renders SN10 on every row and the Crystal Blue sid renders SN1 on every row while this tier's sid renders no serial token at all, so the blank is a rendered absence and not a dropped column. CHANNEL: cardboardconnection states the Crystal treatment is hobby-exclusive - "Cracked Ice technology, apparently referred to as Crystal in this release, is exclusive to Hobby boxes." - and separately lists the tier under "Hobby-only". ROSTER: this tier renders 20 codes OS-AEG..OS-WBY while its own base insert set renders only 19 - the code absent from the base tier is OS-THW, identified by diffing the two rendered code lists. See G-008. Every row also carries the flag AU. Card numbers in this set are not normalised here; they belong to the chase pass. Evidence: https://www.tcdb.com/ViewSet.cfm/sid/168758/2017-18-Panini-Prestige-Old-School-Signatures-Crystal 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.cardboardconnection.com/2017-18-panini-prestige-basketball-nba-cards/amp https://blowoutbuzz.wordpress.com/2017/11/18/first-buzz-2017-18-panini-prestige-basketball-cards-early-retail-details/ https://www.sportscardchecklist.com/sport-basketball/year-2017-18/index-panini-prestige/trading-card-checklists-and-product-information