Measure it to be sure, but that's almost certainly the low-inductance (260mH) Integra, usually showing up with a CF-100 stylus, which won't be easy to find. Though it's basically an Integra QLM 36 Mk II (also hard to find), any Integra stylus will do the job. The 114-DET would be my top pick. If you don't want to throw that much money at it, there are K-series styli that will work, and a few good aftermarket versions. This particular Integra variant can be spotted by the extra-thick thumbscrews on either side.