Buried on Page 7 of Bill Simmons’s Grandland piece about the National Sports Collectors Convention is this tidbit: Al Trautwig, of MSG Network fame, made some nice coin auctioning off ABA basketball uniforms from his personal collection earlier this month. Trautwig, you see, was a ball boy for the ABA’s New York Nets back in the day, and last week, he sold a number of items he’d kept all these years at auction. All together, the eight items from the Al Trautwig Collection listed here as part of the Sixth Annual Basketball Hall of Fame Induction Auction sold for $241,440. Even after you subtract the 20 percent buyer’s premium included in that figure — and take away the commission a seller pays on the hammer price (which the auction house says averages 15 percent) — that’s still a good chunk of change. The highest sale price? A game-worn 1974 Julius Erving ABA All-Star jersey that went for $132,000.