Have seen Borrani's many times on Ferrari's, but they were all centre laced, so would most likely have the wrong offset for a TR. Pretty sure the rim/tire size would be too wide for sidescreen TR's and rub on the rear wheel arch. Could be the wrong spline too. Can't recall if they were 15" or 16" diameter.
Main difference was that the rim was alloy instead of pressed steel, so they polished up nicely.
They were fitted to Ferrari's up to about 1969, as the Daytona had mags.
Being Italian, they were probably used on Maserati's and Lambo's as well. Alfa's and Lancia's may also have used them and if so, in sizes more suited to a TR. Perhaps have a look through ebay listings for those marques which will give sizes, but offsets need to be checked.
Viv.