Santini 5 flute "Gilco" style frame

[Jesper]

Here is another 5 flute frame similar to the Gilco 4 flute style frame. I cannot verify that it is Columbus tubing, but rear drop-outs are Columbus and fork is fully Columbus (steerer, blades, and drop-outs).
Based on features I believe it is from late 80s before Colmbus decal style change (unless old stock decals were used), and rear spacing.
This does not match frames from the Santini marque based out of Forte dei Marmi Italy which has a 4 leaf clover logo instead of the bird's head logo featured on this frame. Quality of conjunctions is very good without gaps or excess solder which is amazing around the BB shell due to non-round tubing mating with round BB shell DT and ST nozzles.
"SR" mark (not Sakae Ringyo) cast into BB shell, Italian BB threads/70mm, internal shift and brake cables, 125mm rear spacing.

 

[Jesper]

More photos:

 

[vcballbat]

Very nice and interesting frame, I've been trying to find out what make the lugs are with the SR logo as I have a seat lug on my 83 Raleigh SBDU 753 frame that's the same as one with the SR logo I've seen

Thread 'Lug Identification... Italian 1980's...' https://www.retrobike.co.uk/threads/lug-identification-italian-1980s-🤔.466634/

 

[Jesper]

Thanks for the link @vcballbat The suggestion of San Remo being a possibility seems plausible; at least it is in Italy. I had seen the mark on a Raleigh as referenced by another individual who also contacted Columbus (I guess due to the seat post tie-in), but he said no reply was ever received. Obviously, it was used fairly widely by some top builders (i.e. Losa, Chesini, et al.) for a short time period (mid to late 80s to early-mid 90s). I am going to check some of my other frames to see if I have more examples of this BB shell. I have not come across any other components with that mark.