1967 Vintage Buffet R13 Clarinet "Golden Era" - SUPER Cool -Original RECEIPT!

Description

Up for sale, a vintage 1967 Buffet R13 clarinet.  This lands right in the "Golden Era" of these horns.  Miraculously, this instrument still is accompanied by the original sales receipt from 1967.  Looks like someone probably got this as a Christmas gift 54 years ago!  Just look at the original inner and outer cases, looks like it is a few (not 50+) years old.  I've sold probably 20 or 30 R13's over the years, this one is practically a time capsule.
As for the condition, the wood looks good with no visible cracks that I see.  Pads and cork look quite old.  Key-work is a bit drab from sitting.  It undoubtedly needs a top to bottom refurb.  Should be an incredible horn after that.  It has a slight vibe of "museum piece" since it is in an unusual state of preservation / documentation.  That said, it would be a shame to not restore it and make it sing again.
Of note: the case only opens to about 60 degrees (seems like it should open to 90 degrees).  I'm not sure if this is correct or if there is something binding.  Comes as shown with the original papers and everything pictured.
(Out of curiosity I did an "inflation calculator", 2 in 1967 would be 00 today.  Looks about correct comparing modern prices for this horn.)
US bidders/buyers only please.  This will ship tracked and insured.