On Dec 20, 2007, at 5:58 PM, David wrote:
Hello-What we commonly call Apex running boards were what Apex called
"Tri-Lok" running boards, that being their trade name for the process
by which the metal components were assembled. AFAIK Apex never made
any other type of running board, but even if they did it was not widely
used and the Tri-Lok design was the one that was applied to thousands
of freight cars from the mid-1930s until running boards began to be
phased out in the '60s.