Midlife, there is something strangely refreshing about the artless candour with which you display your collection of classic componentry, as if to say: "Here it is- I ain't polishing it or presenting it...This is where I chucked it when I stripped the bike down and there it will stay". You are inviting us to have a nose around in there, so here we go, ready to be corrected by you when we have done our guesswork.
First off we can't help but notice those brakes, one Dura-ace and one Campag? They seem to have escaped the gravity of the box, possibly because they were obscuring a tantalising glimpse of a drilliumised nuovo record rear mech, might even be a first generation Super record with titanium pivots. Those bars look like Cinelli 66, on a black anodised fluted stem, could be a 1a, I'd guess 11 or 12cm. A Nuovo Record brake lever, behind which a large flange hub I will not guess. Half a drilliumised Weinmann 500 caliper, and a Nuovo Record seatpost. The other brake lever still attached to the bars is not I think the other Campag. one, so chances are it's the Dura-ace one.
How did I do?
You really need to build that up again. You're too old to suffer from groupset-itis, (the irrational urge to have all your componentry supplied by one manufacturer). We've yet to see a nice retrobike where the brakes and brake levers don't even match.
Anyway, as much as I enjoy rooting around in you garage, I really must get on with identifying my frame. I KNOW you can help me. Here is three quotes I've dug up from the bowels of the internet:
"Holdsworthy company built frames for many shops around the country (and >especially so in the London area) and these frames often do not carry a >Holdsworth frame number. I have had a couple of Ken Ryall frames which were >Holdsworthy built but had a frame number specific to the shop whose >transfer they carried."
"During the time Dad (Stan Pike) was in business he also built for other UK businesses such as Don Farrell cycles, Ken Ryall cycles, Fred Baker cycles, to name just a few, these frames carried their respective dealers transfers."
"according to Barry Witcomb, bikes will be either a Holdsworth or Witcomb, rebadged, he did suggest that mine was a Witcomb bike because of the wrap around lug style on the top of the seat tube; although he never got round to verifying the exact origin, supposedly he can check the frame/fork number back to his 'records' "
If you remember Omegastrada's Stan Pike thread, the frame number on that Stan Pike was just like mine: K, two numbers for the year, three for number of frame that year, R. At first I thought I'd found the maker of my frame, but I asked myself "why the K and R?" That second quote above says Stan sometimes built for Ken Ryall, so I'm extrapolating from the evidence the following scenario:
Ken to Stan: "we need to order some frames"
Stan to Ken: "Sure, what number are you up to?"
Ken to Stan: "75011"
Stan to Ken: "ok I can build you 75012 but I'm going on holiday at the end of the week so the others will have to wait until I get back"
Ken to Stan: "No problem, we're in a bit of a rush but I'm sure we can get Witcombs or Holdsworth to do 75013, 4, 5, 6, and 7, have a nice holiday".
Do you think that's a fair facsimile of the framebuilding business mid '70's, or am I on totally the wrong track?