Bayonet arrived today. It appears to be a properly marked Elkington. Pommel and cross guard look good, no pitting, most of the original finish. Blade appears to have been ground or sharpened at some point, and is from what I can tell, about an 8th inch short. I thought this was the case from the photos. Grips look pretty good but there is some separation of the joint on the bottom, about an 8th inch.

So it's been heavily used. I'm not sure I'm happy with the purchase at this point, awful lot of money, but I saw what I was getting so I'm not complaining. It'll do until I find one at a yard sale. At least it's the real deal.