It is indeed a 'Knotted Rigol' which was representation of one of those late Victorian walking sticks. They were a very popular style as the spikes kept your figures away from the stem and are often found as a clay pipe made by the various British clay pipe makers like Gordon Pollock although I do not remember ever getting one in my monthly pipe quota back in the 1980s. I have owned one of these pipes myself in meerschaum which I sold to a fellow on this forum about five years ago who I think lived in Alaska. The amber stem had a rounded lip and they show up on Ebay quite often normally with buggered bone tenons and threaded shanks that have been worn smooth from over enthusiastic cleaning practices. Remove the tape and see what lies underneath. If it is cracked it will need an oval silver band and new bone tenon and faux amber stem. Look in the bowl to see if it has a restrictor in the base which will usually be a silver six pence with a few holes drilled in it. In terms of repair either send it to Briarville or Ian Walker of Northern Briars (
www.northernbriars.co.uk email address
info@northernbriars.co.uk) who will have it up and running in no time at all. A lovely pipe well worth getting restored and should smoke well. As an after thought did you get the case with the pipe? They were usually made either by the Parisian carves or the Austrian carves and then white labeled by the pipe retailer. Enjoy smoking it.