Tank car retainer valve location


Jared Harper
 

Where was the retainer valve located on tank cars? I have been looking through Ted Culotta's Steam Era Freight Cars Reference Manual:  Tank Cars looking for pictures showing the valve location.  I think I see a valve peeking up at the end of the car on p.52.   I think I might see another one on a SCOX car on p. 65.  I might seen another on GATX 24126 on p. 104.  Was there a standard location and how was it plumbed?

Jared Harper
Athens, GA

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