911 seats model year(early? or late 69-73?)

[hanaz]

Hello, I'd like to have your knowledge on 911/912 seats.
I have bought used 911 seats recently and prepare for starting restration.
But I haven't confirmed model year of my seats, if you have any ideas on the model year, could you please share with me?
I suppose my seats is early model like 1966-68 as seat back is little bigger and spring coil on bottom side is not covered, but I'm not sure.
I hope I can hear opinion, I appreciate your help in advance, thanks!

[John2244]

65, 66, and maybe 67 are possibilities.

[roblav]

They look like my late 1966 and 1967 cars. Unlikely US 1968 since no headrest cutouts.