W5-KA538A-SH Peerless Driver Parameters?

I have 12 of these. I've had them for years, but I can't recall where they came from, at all. They're either sourced from Parts Express, but their archives can provide no light on the subject. I've scoured and scoured the internet, I've even used AI engines to look, but to no avail. I did find out they're a Peerless India driver. Paper cone, butyl surround, nice drivers from all appearances. I'd really like to build a 2.5-way, WMTMW, TL loaded, tall-ish, desktop speaker with them, but without specs... Yes, I COULD test each of them, but I'm camping, and half a state away from them, until the middle of October. 🤣🤣 Was hoping I might get further insight from some people here, many of whom I know don't lurk much anymore... DYon, Steve, iamanidiot... any assistance locating manufacturer and T/S parameters?It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

...and the ACTUAL model number is: w5-ka538a-shIt all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."