Hmmmm....they're still on about cabin windows....the point was that ALL the cut-outs in the pressure cabin had to be re-evaluated , redesigned and produced in thicker more fatigue resistant alloys with rip-stop features...the initial failures had been at an ADF window and an emergency hatch .
I think Pan Am started 707 services only about a month (edit) after the first Comet 4 transatlantic service...you can see a 707 parked discreetly by the fuel tank 'farm' (site now of T5) in the last of the Comet take-off sequence in #24
Here's some more shots from Mark Kauffmans 'Jet Comet' essay for LIFE mag
Jet Comet - Hosted by Google
Jet Comet - Hosted by Google
Jet Comet - Hosted by Google
Jet Comet - Hosted by Google
and these are from the same session but don't come up by searching 'Jet Comet'
BOAC Comet Captain Alabaster, BOAC Chairman Sir Gerard D'Erlanger and BBC's Reg Turnill in there
LIFE - Hosted by Google
LIFE - Hosted by Google
LIFE - Hosted by Google
LIFE - Hosted by Google
LIFE - Hosted by Google
LIFE - Hosted by Google