It looks like its in great shape. I just wish that when someone lists their car for sale (on any site) that they would actually put some info and better (more) pictures in the add. That is definitely a rare sight...
It sure looks in great condition, says all original and mother bought new, with the 351 in it, could be a great deal "if as advertised". Don't care for the porthole but other wise nice!
Those opera windows (aka porthole windows) were becoming a 'fad' or popular item at the time. Personally I rarely liked them. The factory ones on other cars were OK. I just never cared much for the aftermarket add-on stuff. (still don't).
But the 56 or 57 Thunderbird with factory porthole top is nice!
Interesting reading on the hsitory of these windows:
Looks like a really nice car otherwise. It would be a real attention getter. Just wouldn't want the owner to try and pass that window as "original from Ford"...