This pocket watch was passed down to me a few months ago. It was my grandfathers and was used daily until his retirement from the railroad in 1970.
Just thought I would share as it took me a while to find out more about this piece (at least till I found the NAWCC forums a ways back). This pocket watch is also the reason I can't stop looking and reading about time pieces in general.
--- 1931 Illinois Bunn Special - 163A IIB -23j - 60hr Elinvar model 15. It's actually cased in a Ball case and not the original Bunn Special casing.