This is a nice original Lunkenheimer 1 1/4" quick-acting throttle or fuel valve for a steam engine, gas engine air start, or other application.  It is in good, used condition and has 1 1/4" npt threads.  Everything moves and interacts as it should.  This valve has nice original patina and only minimal wear as can be seen.  It looks like it should be ready for use.  It would also make a great spare on the shelf for a future project.  These throttle valves are extremely expensive new and are actually pretty hard to find in this size!  The pictures tell the story.  I can be reached at: 262 573 193 1 if you'd like to talk about it.  Good Luck.