I think the Model N's engine is basically the same as the Model T's but the T's had valve covers on theirs, That's a nice Model N, I have a 1925 Model T Roadster Pickup, a 1925 Model T Fordor Sedan & a 1925 Model TT Stake Truck with a Ruckstell 2 speed rear axle that I just finished restoring last week, Both my 1925 Model T Roadster Pickup and my 1925 TT Stake Truck have black painted wood spoke wheels and my 1925 Fordor Sedan has wire wheels.
What a wonderful example, in some ways the engine looks more complicated than the Model T, but I think maybe this is down to older technology.... I own a Model T myself. Check out my video :) ...... Thanks for posting!