Interesting in that this is probably a 1960s or 1970s glove with three fingers instead of the usual four (plus thumb). Though it's a Louisville Slugger glove, it has the Wilson type three lace hinge. "Big Louie" implies that it might have been made for softball. Value on it (left hand throw lowers it a little on demand) maybe $10 to $20.
Actually this glove is from the '80's At least that is when I purchased mine new. Around 1984. If this glove is for sale I would be willing to purchase it from you. Mine is getting quite old.
I would term the quality of the glove as quite good. I have had mine and still use it since the late '80s. The cost right now would be anywhere from $20 to $40, depending on the condition.