Genuine or not? NV45 by Niels Vodder  

And how thick that cushion is! Yikes that is ugly. 

I think based on evidence from the evolution of the Chieftain that is is like that Finn always planned for the buttons to be the domain of the upholsterer’s judgement and perhaps Finn’s actual preference was no buttons. 

Of course there was some sofas where his drawings indicate precise placement of buttons, so the no button preference was no universal. And we also know that with the Chieftain by the mid 1960s the use of foam would have allowed it to be done without buttons but 3 buttons were maintained suggesting that Finn might have changed his preference with time. 

I enjoyed the short video which the first image was from, thanks:

Shaped by Danish Hands

Another thing I cant figure out is on some chairs we see wooden bung / plugs on the back of the rear rail. This must be filling the holes from the dowels for attaching the front leg / back rail stretcher. But were the holes drilled all the way through the back rail from the factory or was this due to a (bad?) repair job?

Also any comments on this example please?

The plugs to the rear rail are not a repair job. They are how the 45 was made by one of the workshops. The strut is actually dowel jointed to the rail in those chairs and the hole extends all the way through the rail. And then there is a larger hole to the rail for a plug to cover the dowel.