Help Identifying Driver - Watkins?

Hey guys. I bought some DIY speakers from a guy and they came with a pair of drivers. They have a clear/translucent cone material. The ONLY marking on the back is a "W". There's more after it, but it's rubbed off and I can't make it out. The guy said they were Speakerlab, but that's a repair shop that recones speakers. There was once a label from them, so I'm guessing they were repaired at one point. They measure 5 ohms. Here are some pics:

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EDIT: I thought they were Watkins only because I had a pair of Infinity speakers that looked pretty darn similar and had never really seen the clear cone before. Also, the W. Also, the other drivers I bought were Strathaern ribbon drivers, which were used in Infnity speakers.
 
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My first thought was infinity as well. Given that those have a coating on the surround and whatnot, I'd suggest testing them and using that data for any utilization purposes, you're unlikely to find much info on these unless someone else recognizes them, and even then, it'll be minimal info (I would give 10:1 odds betting against a datasheet being available).