The 49 COE has a mixed bag of 20" wheels. All of them are being replaced by new 22.5 units.
Anyway, The 2 piece wheels I dismissed as the old firestones. But I came across a drawing of what was called an "advanced Center Design" rim that looks exactly like them. Was there another 2 piece centerline rim by another manufacturer?

Question 2: How do you take them apart? They have good pair of steering tires on them and it costs a bundle to dispose of the tires and rims. Throwing the rims on the scrap pile and selling the tires for $50 sounds a lot better.