Someone had commented earlier about the supposedly

large circumferential rivets at the end of the car.

    That might have been me.  Pictures are worth a thousand words and now that I'm seeing pictures these cars are looking better and better.  Some item are over sized but I don't think it's the bolts.

-- 
Jon Miller
For me time stopped in 1941
Digitrax  Chief/Zephyr systems, 
SPROG, JMRI User
NMRA Life member #2623
Member SFRH&MS