Custom Richie Ditta Track Bike, Eddie Merckx Corsa, Marioni Custom Pista, Dolan Cyclocross
I'd be interested in finding a set of the rubber seals for these pedals, so if anyone knows where you get these parts from, I'm all ears too.
I would guess you could get the bearings from any industrial bearing supplier. May not be official parts but would probably work. If you remove the seals you should be able to see the bearing's serial #, this is all you need to order more from one of these places.