The Grand Duke line was released in the 60s. The colored stem logos were produced until the 70s, but it is believed that they were found up until the 90s. It's hard to say, but I believe this pipe to be from the late 80s.
5.91" Length
Chamber .78" x 1.60"
1.2 oz
5.91" Length
Chamber .78" x 1.60"
1.2 oz
