http://www.specialtyvehicles.c...-1997-barth-trolley/

see pics

1997 Barth trolley
24 passenger
Chassis Chev P 30
Odo 276350
454
Gas

Barth marketing people must have been very effective at getting orders for mobile command posts, mobile medical clinics and trolleys.
The current equivalent seems to be HomeTown Trolley
https://trolley.hometown-mfg.com/trolleys
I took notice of the quality construction of one I rode at the Biltmore Estate.
Despite Barth's trailer origins, I'm not aware of Barth having produced anything like the cute Trolley Treats Caboose