Update price reduced 350. For 450 I will also include an 8cylinder sender. For sale today is a very rare survivor 1950's Auto Meter 10,000rpm Auto Tach Shop meter with original box, screws, and sender. If you look closely at the 10,000rpm tach and sender you will notice "Arlington Heights IL". I believe this to be a 50's unit as Auto Meter was based in Arlington IL until they moved headquarters to Elgin IL in 1959. What makes this item even more unique is the sender, the sender states M for voltage and cylinder as 1? You all may now about this than I do. The gentleman I acquired the tach from believes it came out of his local gas station used for tune ups. The red lead goes to the distributor primary (negative side of coil I believe) and the black leads goes to ground that's it! This would be an excellent piece for your vintage garage and you could use this for tune ups or put on display! You could easily swap senders but I would leave it as is since the original Arlington based units are so rare! Approximate dimensions are 9" tall 7" wide 6"deep. Check out my other ads for a 60's Hone O Drive Overdrive kit. I'm always willing to make a deal so PM me questions or your best offers. I would prefer to sell directly to you all instead of ebay but the longer things sit the more likely I am to list on ebay. I'm asking 350 or best offer Jose