The irony of these models is that Athearn sold them with plain

bearing trucks! Menzies apparently continued to produce version #1
above later, and he may have included RB trucks. I do not know.<
I 'think' Athearn at one time made the RB trucks, I have four pair
(looking at them now<G>). Typical Athearn metal side frames/boosters with
springs. What time in history these were made I'm not sure but I got them
in the middle/late '50s. I don't know if the Athearn cars ever had the
trucks as I only had a pair of side once.

Jon Miller
AT&SF
For me time has stopped in 1941
Digitrax, Chief/Zephyr systems, JMRI user
NMRA Life member #2623
Member SFRH&MS