Okay, here's a toughie. Made in England by a long-defunct shoemaker. Appear to be bespoke. Quality is outstanding, last is ages ahead of its time. I have the funniest feeling I've seen that heel before, but I can't pinpoint where. Honestly, if it reminds me of anything, it would be very old Lobb, but as far as I know, Lobb has only ever made stuff for Lobb... In house bespoke, contracted to EG, or something else altogether?