Jay,
The CAO Millenium was made one time in 1999. I believe that the production was limited to 1000 boxes each with 21 cigars.
Here's a description from CBid:
The super-rare, super-premium limited edition cigar from CAO. To celebrate the 21st century, CAO created this masterpiece in an extremely limited quantity. To be exact, only 1,000 boxes were produced to ring in the New Year.
Masterfully rolled with a complex blend of extensively aged and carefully picked leaves, this is one of those few ventures that every smoker should experience at least once. Utilizing five different Nicaraguan filler leaves and a flavorful Nicaraguan binder, the Millennium will offer a richness and flavor that cannot be matched. And to top it off, this cigar is draped in a flawless Ecuadorian grown Rosado wrapper. Made by Tabacalera Perdomo in Esteli Nicaragua, this gorgeous box-pressed torpedo is individually packaged in cedar coffins.
Size: 7"x54
PS
I love these cigars