Another original 1913 feature which has survived is the external entrance to the ground floor living room. In 1968 it was out of use, being covered by a bench (or half a bench - or half a bed, or whatever it was). The other door that can be seen in the black and white pic leads through to the den:
The area was captured in the 1968 Austrian film, as well as Joe Baiardi's video from 2008:
As we have seen, when John & Yoko moved back into Kenwood at the end of November 1968, the living room was transformed into a storage space for their various art exhibits - including those from the Half-A-Wind Show at the Lisson Gallery in 1967. John's contribution to that had been the Air Bottles, in which the other halves of the exhibits were stored "conceptually". Paper labels bore the name of the half-a-whatever it happened to be:
The bottles sat on the window shelf/seat in the living room at Kenwood, again an area captured on film in '68 and '08:
Incidentally, not many of the exhibits from that particular show survived the moves from Surrey to Berkshire to the upper west side, though one that did is the following, if looking a little careworn these days: