Lets answer several questions here...and put to bed some myths.
"Gold or Brass" face panels does not automatically rule out stereo. The stereo integrateds, receivers, and mono (AM-FM stereo tuners) from 1958-1961 all had gold/brass facepanels. This includes the X-101-ST (the first stereo integrated from Fisher-1958), X-101-A, X-100, X-202, 500-S, 600, 800, 400C, 400CX, FM-50, FM-100, 100r, 101r, 100-T and 202-T.
All of the above with the exception of the 800 (which has a very unique face panel) have a "rolled brass" face panel with rounded corners on the tuner dial glass cutout. They also feature a black "pinstripe".
The 400-C was also available with an extruded aluminum face panel.
The 1962-1963 units were also available with a "golden lacquered" extruded aluminum face panel. This includes the X-202-B, X-101-B, X-100, X-1000, FM-100-B, FM-50-B, FM-200, 202-R, FM-200-B, FM-1000, 400CX-2, 500B, 800B. The KX-200 and KM-60 were also made in lacquered versions as well as the MPX-100 multiplex adapter.
The above units (the exceptions being the mono FM-200 and 202-R tuners and the MPX-100) also were available with the more common aluminum finish...and there is even a champagne finish on some of them.
The units with the extruded panels that did not come in a "golden lacquered" finish, are the X-100-B, KX-100, X-101-C, SA-1000, K-1000, R-200, MF-300 and MF-320.
Fisherdude is correct- Fisher did utilize the same series names for their consoles such as "The President", "The Ambassador", "The Coronet", and "The Executive". The denoted a change by adding a number (eg: "The President IX").
The Coronet that the seller most likely has is the model that has the SA-16 amplifier, and the 100-T Tuner/PreAmp. It is a wonderful console...espiecially when it is in the "Modern" cabinet. They are worth about $300-$500 going by EBAY prices the past year- two popped up. The SA-16 and 100-T go for decent money by themselves.
A tip for all you guys who rob Fisher consoles for their amps...to combat turntable rumble being audible through the speakers...Fisher replaced the main coupling caps with .0047uf instead of the normal .047uf in many models. So if you are going to rebuild a console amp and use it "freestanding" replace them with the proper .047uf caps.
The "Allegro" console unit...is often mistaken for a SE design...it is not. It utilizes the 6HU8 tube which is a twin pentode...push pull in one bottle. Sadly people end up spending big bucks on EBAY for these because the seller usually lists them as SE amps. At a glance it appears to be a SE EL-84 amp. It is cool looking though...it looks like a mini X-100-B and FM-50-B.