I'm aware Fender had been selling the series III Blues Junior Tweed w/Sparkle mod & Jensen speaker after the series IV was released. There is a model at Sweetwater now 03/23/2021 that looks exactly like it.
I teach gtr at a music store & we just got in some Blues Juniors w/the Jensen speaker, chrome top & reversed control panel, just like the series III had. It does NOT say "series III" on the back of the amp; there's no model designation. It's not a series IV; the owner's manual says it's a "Limited Edition" Blues Junior. Does anyone have any idea what it is or how to correctly identify it? If it's a series III sparkle mod version, I want it, but I'm not sure what it is. Frustrating.