The White pads aren't original, 'Roo pads' are a relatively knew invention compared to the saxophone. It sounds like it could well be a C-mel as someone has already said. If it is the prices are significantly lower, but you can be sure it's a great horn. Martin's in my opinion are the most underrated saxophone brand. I have never found a Martin that didn't impress which can't be said about any other brands from Selmer to these new ones like Cannonball. Though you have to watch out for their tone holes. They are soldered on which means they corrode very easily. This is expensive to repair if the corrosion gets bad and normally not worth it on a C-mel, but if they haven't corroded yet, they won't as it only corrodes due to moisture between the sax and the tone hole. Though if they get leaks and you don't wipe out the sax and let it air through you'll start it corroding. You can always get a repair man to re-solder them on with silver solder before they corrode to prevent this happening, though that can also be expensive as they need to be seated, and the sax must be stripped etc, and regulated again. If it's in good condition, you've got yourself a lot of horn for the buck, if it's in bad condition you've got yourself a fair deal really.