Bruce Springsteen & the E Street Band fully signed inner LP sleeve for disc 1 of "The River" (1980).

No history on this one, but it does include the signature of two recently deceased E Street Band members (in addition to the rest of the band, including Bruce). No valid COA to go with this. From what I can tell online... and that's not saying much (LOL)... these signatures seem to have attributes similar to others I have seen by the same band members. Still, I know that signatures can vary depending on if they are rushed or at a weird signing angle, etc..  The other side of the coin is... there are a lot of forgeries out there too.  I'm considering throwing down the few digits of cash to get this authenticated one way or another... but I thought I'd try here first and let you guys take first stab. 

Much appreciated (in advance).