I for one have enjoyed and learned a bit from this thread. Having never seen or heard of a Cinelli with solid lugs being made after 1968, I had assumed that if Model B production continued past then, they would have used the drilled lugs as well. I now learn that the Model B never had drilled lugs. Whether any were made after 1968 is still unclear. Perhaps because I am a mechanic and regularly take things apart (and sometimes reassemble them), I still mistrust dating bikes based on easily swapped components.