As the topic title alludes to, I'm looking to ID the profile of my newly purchased eBay Medeco mortises. I try to only buy Air or Sky when I buy Classics, and I thought I had checked this lot of 6 I bought for the purpose of repinning and making keys, so I had a few to cycle through for practice. I guess I mustn't have looked too hard on this occasion though, perhaps the price distracted me..

This is the profile in question. As you can guess, its not amongst the Ilco profiles, not the JMA Proline, which for anyone who doesn't know, has about 8 - 10 more profiles listed that Ilco doesn't. Its marked 'Listons Texarkana', so originally I figured it was probably dealer restricted, but I realised I also have a couple of 50 series padlocks with the same profile, from another purchase at another time. Could be that they are both from Liston's, but I'm hoping not! As they are only really for picking practice, I guess I can live without keys, but If I can pull it off, I sure would like some.
If anyone can help me ID this keyway, or help me obtain blanks, I would greatly appreciate it, and would love to reward you for your help!
adi_picker