No........ just in the serial numbers.
There's a few pictures of the frame in 'gallery 2'/user albums/torqueless.
I actually phoned up Knight a few years ago in one of my sporadic attempts to find the maker of this frame. (never heard of them before I saw that classic lightweights page). They are still in business, but the frame building side of it is long gone I think. The bloke I spoke to was trying to be helpful, but I'm pretty sure this is a 1975 frame, so that's a long time ago... I was asking more or less the same question that I'm asking here.... "frame number starts with a 'K'. is it one of yours?" The 'R' could stand for 'road' or 'Reynolds' I suppose. Anyhow I couldn't get a definite answer either way..
I asked Shorters if it was one of theirs because it came to me originally with Shorter transfers.... but the kind that suggested 'resprayed by' rather than 'built by'. I was there in the shop 15 years later with the frame in bare metal. Couldn't get a definite anwer there either....
How much evidence do they need in order to say 'yes' or 'no'?....... or even: 'I dunno but I can ask the framebuilder' ?
Maybe it's bad form to walk in and out of bike shops with bare metal frames... much room for improvement in my 'bike-shop etiquette'! Let's face it... I been riding the same bike for 28 years....studiously ignoring every bicycle innovation since the 6-cog freewheel... how long are they gonna stay in business with customers like me?