Need help with a Buffet Clarinet

http://southjersey.craigslist.org/msg/2762776322.html

Can anyone tell me would this be an R13 or if not exactly
what would the classification be, also if someone could give me
an opinion on the quality of the horn I would appreciate that.
I would be upgrading from an Evette Schaeffer plastic clarinet
my dad bought me about 38 years ago. As always thanks a bunch
, Jay.