No problem ;)
Last thing I just re read Memories of Charlotte Perriand ;)
P 32 "1928 Pierre Jeanneret and me,..., making armchairs and tubless Lounge...drawing 1/1 ...metal base of the lounge was found inside aviation's pieces catalog...at the evening Le Corbusier said "Stop your sterile joking"!!! p 33 :)
So it's appear that was Pierre J. and Chrlotte P. who make the lounge along days and Le Corbusier at evening validation of the work ;)
He has prefered the architecture than the furnitures (Charlotte & Pierre were there for that) ;)

Hats off to Charlotte & Pierre for the "sterile joking" and its product, LC4 - such a great piece! :)

"...metal base of the lounge was found inside aviation's pieces catalog..." You can see the aviation detailing in the screws attaching the legs to the cross tubes.

Thanks for posting.

Leonard