EDIT: This is the original post I made.
Hi everyone "Could really do with some help re: authenticating a supposed 753r frame and 753r forks."
I bought a frame a few months back that was supposedly 753r. It was badged up as such, but the forks got me wondering when it arrived.
They where re-sprayed and peeling because there was no undercoat ? I cleaned all the paint off and the brasing colour is yellow (brass).
Main question is "Is silver brasing also yellow, but with a very high content of silver OR is it as I suspect white/silver in colour ?" I have never seen 753 brasing, so sorry if this is a no brainer
This frame has a Cinelli aero BB shell and columbus dropouts ? The lugs appear to be Raleigh (long & pointy). Sloping crown on the forks. NO maker marks at all, anywhere,not even on the fork tube. The seller didn't like being questioned about any of this, eventhough he professed to be a 753 rider and owner of many 753's. (always thought 753's where stamped & catalogued because of the expertise involved in the making ?)
(swore he knew his stuff & I'm no-one to question his integrity)
It appears to have the original GB sticker on the headtube, but the rest of the stickers are cheap tat, slap ons. (black plastic Geoffrey Butler name cutouts) The 753r sticker are external stick on's, not water labels. Any pointers please would be greatly appreciated
Its a lovely frame, extremely light, but I can't move on with it until I know if it is definately 753r OR not / other. Just an old stuck in the mud who dislikes wrongly badged frames. The onus is on me to get it correctly identified before re-spray & badged back up.
Thank you, yours Laz (new here)
EDIT END
Thanks Roadking

"I hope I haven't appeared lazy at my own attempts to identify in my first post ?"
Wasn't sure if I was allowed to make image posts before 5 posts, so opted for a description. You sound like the kind of person who would know instinctively wether it was a 753r GB or not.
I am far more familiar with Italian frames, Columbus tubing, and how a bike feels to ride. This frame really is a beauty in every way, just unidentifiable :-(
I deeply suspect that the bike has had a front ender and lost the forks, hence the new ones being 531 on a 753 frame. NO damage anywhere in anyway on the frame to indicate this, just a hunch. The forks are heavier than the frame, or close to it.
The aero BB shell & columbus dropouts just don't sound like a British build for 753, but I know so little about company histories. I am hoping those of you in here that have 753's can confirm that an unstamped / uncatalogued 753 is very unlikely.
Really appreciate your help

Perhaps I should try and get images online via flicker/other. Take care buddy, yours Laz.