For Tony Thompson but open to all:

I attended a regional NMRA event this last weekend in Ocala, FL, at which
some guy was selling brass cars at rather low prices. I picked up an SP
G-50-12 by Challenger in mint condition for $30. I'm a bit curious about the
lettering. First, the number is good...92928. The style is like that on pg
124, car G-50-9, 46387 of your SP gondola/stock car book. However, it was
reweighed in 1940. And, an airbrake test was performed in 1946. It has a
Carmer coupler lever and a horizontal brake wheel [ rod parallel to the
rails ]. It also has a round rod that is part of the dump mechanism as
opposed to a rectangular shaped rod. Other than that, it appears to be
correct...without measuring it. There is no doubt that it is a
G-50-12...matching well with the photo on pg 100/101 except for the circular
dump rod and the " modern" brake wheel.

Mike Brock