In 2003, the Oliva Family of Cigars introduced perhaps their most legendary cigar, the Master Blends 1. It was the first it what has become a trilogy of Oliva’s most storied releases. The Master Blends 1 was a cigar that shed the idea of simple and practical and embraced the idea of extravagance, ornateness and from some perspective, gaudy.

But that was the packaging, not the tobacco itself. José Oliva explained to Smoke Magazine:

The Master Blend is a very limited-run cigar; only 15,000 boxes were made. We had a tremendous time doing it, and it is something that we hope to continue to do in the future. We took tobaccos that were not plentiful enough for a production cigar, one you are going to make year-in and year-out. Usually these tobaccos come from trial crops on a small piece of land to see how a strain develops or how it handles certain conditions. Sometimes you end up with tremendous tobacco in very small quantities. So we rolled some of this tobacco, put a Habano wrapper around it, and created Master Blend.

There were three sizes of the Master Blends 1 were made:
Robusto — 5 x 50
Torpedo — 6 1/2 x 52
Churchill — 7 x 50

I cut / paste that from a halfwheel review / article.

Will