Sean beautiful bat. The Batrites have always been a favorite of mine and have a few in my collection. My Gehringer bat falls into your category. Instead of a model number there is a "GF" 5 after Gehringer. I've seen one other bat with this marking and it was a Crabtree bat sold by Mears.
The second Batrite bat I have is a Goose Goslin type. Stamped on the barrel is "Goslin Type". Again this falls into your category of being used or not used by the player. Mears sold a Babe Ruth bat with the same markings and they listed it as Game used. I always thought that if it didn't have "TA" then it wasn't their top line. I also thought that if a bat has "Type" then it is considered a retail bat. If in fact the Goslin bat is a retail bat then it must of been a strong individual buying it because it weighs a ton. I've attached the link to the Babe Ruth bat on Mears.
https://www.mearsonlineauctions.com/...ntoryid=114038