What is a music box "gamme number?"  The article in MMD 20.01.21
mentions "The Arthur D Cunliffe Register of Cylinder Musical Boxes".
I looked at the registration form at the MBSGB web site,
https://www.mbsgb.org.uk/wp-content/uploads/2016/08/register.pdf 

What is a "gamme number", and where would you usually find it on
the box?

Rick Inzero
near Rochester, New York