Nice acquisitions. The blue spade Duke Grabow are filtered bayonet style push stems, looks like ABS plastic so probably from the 80s. The Pipe is a phenolic resin shell, similar to bakelite, with a pyrolytic graphite bowl. Nasa grade stuff. You can clean them in the dishwasher too. Believe that was a selling point. Is there a line indicated on the little Grabow apple with white spade?