Wow, yes, very interesting!
What struck me immediately was how the gourd calabash looks like a modernist Danish design, it looks quite unique, of course I'm not very familiar with the antique stuff and I haven't yet got Schrier's calabash book, so I did a quick image search and indeed your pipe stands out as a variant from the normal form, only a slight bit, but that slight bit adds a sort of timeless edge, making it appear more contemporary than it actually is. I do know perhaps there are infinite variations on the gourd calabashes, simply because the gourd is a naturally occurring thing with each one being slightly different --- yours is excellent, I like the kick of the tail, how the collar is mounted on the shank somewhat angular gives a visual break in the curvilinear plane, like a scorpion almost, or a snail or even yes, a blowfish...
...I think yours is a mighty fine specimen, pretty amazing how Barling could maintain a kind of consistency with these, this one looks quite similar, but I give the edge to yours for visual appeal...
http://www.thepiperack.com/blue-chip-estate-pipe-1904-hallmarked-barlings-make-extra-large-calabash-silver-spigot/
...and here's a funny typo, from a 1941 Geo. Yale catalog, yes friends, every renowned Barling is stamped T.V.A.
:lol: Tennessee Valley Authority?!?!?!?