Here are some pictures of the inside of my G&B 178 for reference on the pipe and selector handle you are missing, the selector handle in the picture is broken and I will attach a picture of it also

DSCN6160.JPG DSCN7483.JPG DSCN7472.JPG DSCN7469.JPG
Last edited by 42packard; Tue Jan 15 2019 09:58 AM.