I recently purchased this late 70's early 80's-ish Bianchi frame, but have no idea as to the exact model. It is painted the original Celeste green (obviously it needs to be repainted), there is a 'made in italy' sticker on the seat tube right above the BB, there is a circled capital 'B' a the top of each chainstay along with a capital 'B' on the top of the fork crown, the number 3 and 'M' are on the driveside of the top of the seat tube and the number 886 is on the non-drive side, there is no serial number to be found nor does it look like the frame or fork was ever stamped with a serial number (I thought it may have been ground off due to theft at some point, but now I don't think so), and it has Gipiemme dropouts on the frame and the fork; those are the only distinguishing marks. Also, I was told that frameset originally had canti' bosses, but were removed by another owner; there is some scuffing on the seat stays and the fork, but nothing that looks like canti bosses were removed or ever present for that matter so I can't confirm it either way. I don't really care about the value as I'm building it for myself, but would like to get an idea for what it is. Any help would be greatly appreciated!

Mike