Please help identify my "opera" pipe that I purchased sometime around the '70s (?). I am clueless as to who really made it, etc. Markings: "Daniel Frank Co" on flat bottom,"BARCLAY STANDARD" on one side & "178B" on other side with circular "Made in England". It is 5" long & the oval is only 1". I purchased this so long ago I can't remember anything about it.