Well, at least as well a kid in his mid-teens could. In fact, He had a rep for being gruff with youth - as several other members here might express - but not me. This was back in the 60's.
He was medium short with coke-bottle glasses and a wardrobe that must have been at least 20-years old. My mom used to drive me over there from the San Fernando Valley. T206 Cobbs were $5 a pop
and within the course of a year. I had 3/4 of them (lacked the Green). Also got a Red Hindu Duffy - card backs were not really in all that fashion then so it couldn't have been more than $2-3. Just a few years ago it was highest graded (SGC) of any of the other TPGs, and sold at auction (Hi Scott and Leon). In fact, if any members here have won a pre-war vint card from either B&L (now just B) or LOTG or our own BST up until a few years ago, it likely originally came from him to me to you.
About his store and errata: The ariticle referenced mentions him moving to Sherman Oaks. He did and it turned out he was a 2-minute bike ride (Schwinn Sting Ray w/sissy bar
) from my own house
I spent a summer hanging out in his and Esthers kitchen sorting cards and drinking lemonade. He would pull out box after box of cards for me to sort, all post-war vint. One day, I pulled a 52T Mick out of a cigar box of otherwise 66T commons. Even then that was my Holy Grail (I was born in NY), but, you know, around $40 was too much for me then (<-- kicks self in A$$). I wrote about this a few years back on the postwar vint forum, but I stink at searches.
Fast forward: When I was 21, and I moved to San Francisco. One day I received a letter from him. He had called my Mom to see how I was doing. In that letter, he told me that he had sold the store mentioned in the article (article was written in 1971 but I am talking 1974), that he had sold his total book inventory to the Univ. of Notre Dame, which at that point gave them the largest sports publication library anywhere. He didn't mention the price, as the article suggests - 100k, so I don't know what it eventually went for.