Granted, the Tenshodo passenger cars are no longer state-of-the-art, but they remain nice examples worthy of model railroads. The Tenshodo cars are not scale length, but they were designed to look nice on the model railroad of that day. Which meant that they looked good on model railroads were 18” radius curves were the norm, and 22” radii curves were as large as you could find in commercial track. Model railroading has moved on, so much so that the current crop of Walthers passenger cars cannot operate on curves sharper than 24”. Times change.
On the other hand, there are certain modelers who have large model railroads with 36” minimum curves, yet they still hold on to the shorter passenger cars of an earlier time. To their mind, the current crop of passenger cars will operate on their railroads, but the shorter cars still look much better. Who am I to argue? Which makes a compelling case for the Tenshodo cars.
That said, even pristine examples of Tenshodo passenger cars can use some improvement.
Tenshodo models came fitted with “Tenshodo Couplers”: