Body and neck are probably from a Boxer Series ST-456 (same necks like ST-362), or another model that used those bodies because they have this exact HSH routing. They came with black pickguard, humbucker in bridge position and two ceramic pickups in middle and neck. So the white pickguard wouldn’t be the original one.
The pickups are legit MIJ ones. I have an 1984 Squier CST Strat (SQ serial, big headstock) with the same pickups, also staggered. Then I also have another Squier CST strat, same looking pickups but flat pole pieces. Some people, including me, saying those plastic bobbin pickups with the square holes are the "SQ-5" ones (there are also "SQ-5 hot rod" ones) and that the fiber bobbin ones are the "SQ-4" ones. Some say it’s the other way. My CST strat with the staggered pole piece pickups came with a sticker where it says "Squier SQ 5 hot rod", I will post a picture.
Potentiometer are legit MIJ ones. Switch not.
A ST-456 would have another, more modern style bridge. So the bridge on your guitar probably is changed. Hard to tell from those pictures if it’s a MIJ one or not.
My thoughts:
- ST-456 neck and body
- changed 1 ply 8 screw pickguard
- changed pickups (MIJ)
- changed bridge
View attachment 459622
Note the sticker. The pickups are staggered like yours.
View attachment 459623
Click to expand...