How are the Tupolev Tu-95's blades shaped? The Tupolev Tu-95 "Bear" seems like an awfully cool piece of innovation with its unusual contra-rotating supersonic-tipped props.  From what I've been reading it sounds like it's been the only mass production airplane to use props at those speeds (there were apparently a handful of American examples as test aircraft but NASA abandoned the project?).  

I'm curious what profile of blades they used.  I know there are lots of supersonic-capable airfoil shapes out there, but it's not clear which if any of these were used for the Tu-95 props, or even whether a fixed wing supersonic blade profile is appropriate for a prop.  Any ideas?
The propellers were designed by OKB-120 headed by K.N. Zhdanov, type AV-60N.  This type was used on a few other aircraft, but unfortunately I can't find any further details about it.  Can somebody visit one and inspect it?