The Grafton Excelerator. A single, short run of those were produced. They weren't polished, & the cages were ti. Solid little things. ...but on the double-sided model, a rock hitting the underside, forward cage would release the cleat up top.
SteelBiker":1c53iirs said:I suspected that the pedals are for some sort of cleats.
The axles are non magnetic, so possibly Ti.