I have a Made in Italy, January 1981, Type E.1.51, Bianchi track bike with a gold colored Aelle sticker on the down tube, I think it was intended as an "amateur" racer model, the immediate forerunner to the "Eco Pista". Gipiemme pieces instead of Campagnolo, it also lacks the chrome of the fancier models, has the B in a circle on the seat stay caps and Bs on the lower head lug at the downtube and on the fork crown, it seems well made with clean lug work, it rides like a traditional track bike and feels surprisingly light overall.
Marcus Coles
London, Ontario, Canada