Based on the different profiles of bias-ply and radial tires:
I believe these shots show the blumo with bias ply tires:
That bias-ply lip seems a giveaway when the blumo is wearing bias-ply. Given the limited resolution, I think it would be hard to know for sure if any shot showed radial tires. Consider the rear tire in the fall-a-part car above. Is there a way to tell if its bias ply or radial?