A point of clarification - I would think not all Ser Jacopos are drilled with "a special flexible drill". I believe that a curved drilling technique is used on certain SJ bent pipes but not straight pipes or bents than can be drilled with a straight drill. I bet this blurb, which I think can be found on Pipedia, is a mistranslation. In my opinion, the original MG series, discontinued for many years, while having fewer shapes were mostly built better than today's MG offerings. That dublin canadian posted by Searock Fan looks like one from the original series. Great looking pipe.