Help! I have an American Watch Company lathe shaft with a Capital “business” head piece, as well as the pin for connecting it to the base but cannot find the piece to attach the two together. Have found no pictures of the connection piece to mount these two together. The pin rotates to lock down the mounting head piece to the bar with the slot in the bar. Does anyone have a picture of the necessary mounting pin? If i knew what to look for i might be able to find it…Thanks.