Stelling banjos have what is known as the Wedge-Fitted Pot Assembly. What that means is the upper section of the wooden rim and lower section of the metal tone ring fit together as if two wedges were stacked on top of each other so that they made a square. In other words, if you drew a square and then drew a diagonal line through that square, the bottom part would represent the rim and the top part would represent the tone ring. In this photograph, you can see the shape of that part of the rim, and you can also see a very finely routed channel for the flange to sit in. Stelling Banjo Works, Ltd is located in Heards, Virginia and is owned and operated by Geoff Stelling.