Signature/Master Model

Oh-Kay Gang,
One more topic and I'll quit beating this dead horse. Can anyone tell me the difference between the Monroe Signature model and the Monroe Master Model? I know the sig. model comes with a case that has the brass plate with the serial number and all that. And that the sig. model was limited to 200. But what's the difference in mandolins??
Thanks!
Steve

[Greenmando]

the Monroe Signature has Bill Monroes signature on the label inside.

[Charlie Derrington]

So far as I know, there is not a Monroe Master Model. There was a limited edition Monroe signed F-5 from Gibson when building was in Montana.

Charlie