I purchased this gauge and sender from HAMB'r Fleetside66 in January of this year. Project changed so won't being using it. I'm quoting directly from his ad so I don't screw up the information he provided. "Here are is a Stewart-Warner "Large Logo" or "Big Block" gauge. Although Stewart-Warner was a bit inconsistent with their specific production dates at times, these gauges were generally made from 1955-1957. The 1955 & 1956 versions were usually curved glass & the 1957 ones were usually flat glass. These were the gauges that came right after the Wings style, which generally went from 1948-1954. The Large Logo gauge is, in fact, the same gauge as the Wings version, the only difference being the logo and the price they sell for now. This gauge is standard 2-1/16" and was TESTED FUNCTIONAL. The gauge is 6v electric. Bezel, glass & gauge face are in nice condition. All of the side light windows are intact. Gauge comes with the appropriate mounting brackets, hardware & insulators. " Fleetside66 also supplied me with a NOS 6V sender for this gauge, made by Vulcan Ignition. This is the information he provided me on the sender. "The gauge is a model 365-K.. The actual numbers on the face of the gauge is 419123. It would take a Stewart Warner 362-B or J sender which cross references to the Vulcan MTV-24." $65 for gauge and sender, includes shipping to 48. Friends and Family Paypal please. Paypal Friends and Family please.