Gary,

I don’t know for certain, but I looked through the Santa Fe Society’s Refrigerator book to look for examples.

On the RR-8 (wood sides and ends) the ladders conform to the shape noted, however the uncoupling lever support is just to the right of the poling pocket and slightly above it. P 108 in the book

RR-19 rebuilds (metal sides and ends) the ladders conform to the shaped noted and the uncoupling lever support is above the poling pocket. P. 132 in the book.

RR-36 rebuilds (metal sides and ends) the ladders curl in at the top, but not at the bottom and the uncoupling lever support is below the poling pocket. P 148 in the book.

It looks like the answer will vary by the age and class of the cars. If you have a specific class of car in mind let me know and I will check the SFH&MS book.