I picked up this GBD Midnight the other day; the photos are from the seller. I think all the Midnight series I've seen previously have had an acrylic stem; this one has a vulcanite stem with the brass rondel. Any idea of the age/quality of pipe would be appreciated. The seller thinks it was from the 1970s; he bought it from a long-standing B&M 6 or so years ago he said.