Tobacco pipe of cow?s horn

Help please!
In a previous KM there was a photo of a tobacco pipe similar to the one I have made in this picture.
I just remember the general look, that is was in a US maritime museum and that it was dated to “18:th century”.

Right now my knot literature shelf is a total mess, so I am unable to find it (or pretty much anything else, for that matter). Can anyone help me?
Even better: Does anyone have a reference to the museum and/or a link?

http://se.fotoalbum.eu/lassec/a846300/00000007