Hardinge ESM ("splitbed" hand screw machine).  Hardinge model 
immediately prior to DV/DSM series ("Dovetail" screw machine).
Used for rapid manual production of moderately complex small parts
such as might be run on a screw machine if quantities were higher.

Turret and cross slide are tooled up to make a knurled nut blank
for (woodworking) mortise machine collets.  Photos show sequence of 
operations.  Blank will be single point threaded in a separate 
operation, on a separate Hardinge with "chase threading" attachment 
to maintain squareness of thread feature to back of nut.