The 9, 10k and 10L all used the same upper casting, PT116NR1 in this case. I could not read the base casting number which will ID which of the three it fits. There should be a unit code stamped on the bottom surface next to the V groove that will ID the model of lathe it fits as well, I am guessing SR-101*. The * will give you the model, N for 9”, K for 10k and R for 10L if I remember correctly.
Hope this helps
Ben