Sorry... As I said before, the only info I have is Oct 28, 1950 - Jan. 17, 1951 and Jan., 1961 - Nov., 1967.
If I get a chance I'll post a register sheet from early Nov. 1950. The NG in Chama was 24/7 operation then. The busiest day I've found was 15 movements in one day including helpers and #'s 215-216.