Well it was mid to high level bike at the time and it was the only Huffy offered in the 60s to have a chromed tank. The Monza GT featured a standard rack (I think the springer was optional) but it had the electric headlight and the horn standard. A comparable bike was the F-85 and it was a step-down from the Silver Jet (top of the line). The F-85 was only offered in a mens frame and had a springer rack with the tail light standard (only other bike besides the Silver Jet to have this feature standard). However, the F-85 only had a headlight tank, no horn.
The Monza GT was produced from 1964-1969 (I think, I may be wrong).
Like all late 50s and 60's middleweights, finding a mid or high level bike with all of it's parts is quite rare and condition is everything.