The "Perfector", of French extraction, may or may not have been ever marketed as a complete razor, as the scalloped, open comb baseplate bearing the name has been seen on its own by at least a couple of French collectors, and my example , with unbranded case, top cap, and handle, sheds no further light on its original configuration or history. The cap and handle in this set match well enough, a Gillette Old Type handle and top cap about as well. Unlike the Gillettes it has considerable blade gap (more like a Gibbs or Rotbart), and it shaves very well given a light touch and care not to abuse the range of angles the greater gap allows.
It is not much different than many of the French and German razors of the time and quite easily managed (for me anyway).
You may have looked this up, but just in case... from the Compendium, Brevete SGDG means patented without government guarantee of novelty or merit of invention, or accuracy of description. It has been mistaken for a brand name. By a French law on the books from 1844 to 1968. There is a Perfector brand listed, but only as a French wedge razor.
Jmudrick: I learn something new every time you post! You are truly a razor knowledge guru! A great example of the Frankenrazor genre! Thanks again! Enjoy your shaves, Jeff