Beetle identification

[JIMP]

Hello all

could just somebody help me identificate a beetle from it's numbers, I searched in some sites but not sure of what exactly it is. Anyway it's owner claims that is a 61 model, but I'm not very sure of it, I wouldn't like to pay for something not real

Its engine has stamped WF 8594650 (the WF appears not on the pedestal with the number, but lower on the block)

and its chassis (below the rear seat) is 6317264

The car is supposed to be all original and truth is it appears like that

Do you recognize if its a 61 as he claims or not?

Thank you in advance

JIMP