This is the hoist set-up on my 55 6500(Rosie). Pics It was originally on a 54 6400 that I got as a package deal years ago with my 55. Its a Heil with the large tag indicating: Class 8, Model #EE366 1715-P1, Serial #237380. Cylinder tag indicating: The Heil Co. BB370-1*, Code G54. I know the G54 is the date code, July 1954, but would like to be able to decipher the rest of the numbers. Does anyone know of a site or have knowledge of this information? Thanks in advance!