Okay, so recently I bought a wooden clarinet on eBay, it is a Buffet Evette Crampon, and I was told it is an R-13, which I hope is true, lol.The serial number is 182310 which dates it back to 1977, and is in the original case which has a symbol that says

Buffet
Crampon
Paris

The logo on the bell and upper part reads Evette encased in an oval with a harp on the top of the oval, and says buffet crampon directly below the oval.

The mouthpiece I believe is the original also, the back read Henri Selmer that is encase in a circle of leaves, and below it on the bottom says HS**. The ligature reads b(flat). cl, france.

Can anyone tell me if this IS an R-13, and it's quality/worth please? Thank you

Also, it's all in good condition, pads seem too good to be original but also look aged so I can't tell if they've been replaced or seldomly used, no crack anything in it, except some aging on the metal.