Yep, this is a Star brand MIJ Slingerland stencil snare. I'm nearly done restoring one in blue sparkle, very similar to the one pictured in the OP. This one appears to be a six-lug snare, whereas mine has eight lugs, no reinforcement inside the shell where the strainer is mounted, and has (or had, it was removed) a baseball bat muffler instead of the twisty knob. It looks really nice after the restoration, but it's easily the worst sounding snare I own. It was part of a matching 4-piece MIJ set that I bought for $125.
I paid $60 (including shipping) for another very similar MIJ six-lug snare, which is more than it was worth, but I needed the strainer for the blue sparkle one (same strainer in your photos). It was the cheapest I could find at the time on ebay.
Speaking of the strainer, something looks odd about the one pictured. Looks like the knob is too far out, and/or the hole for it may be damaged? Hard to tell.