SN 244821 - 1974
Allegros had many looks over the years. I like the old ones especially. I hope it returns one day, but from the website AllegroBikes.com, I found this tidbit:
"For those who have always wondered, the answer to the great Swiss chicken and egg paint scenario is: Allegro. They were the first Swiss manufacture to incorporate the faded paint scheme, some five years before Mondia."