Watling Lock question

[DeTrana]

I have two types of locks on the back door of my Watling machines - one has a Mills like key and the other a Corbin like key - which is correct?

Mills like:

Mills like

Mills like

Corbin like:

Corbin like

Corbin like

[mechanic]

The Corbin style is the correct key for Watling slots. The Mills cut was for other mechanicals like scales and arcade machines.

[flipper77]

We are all operating from the basis of a fairly low population of examples. I have had five Rol-A-Tops and four Treasury machines. My most original Treasury which I believe is bone stock original (later non-American coin Gold Award nickel model) has the Watling "Mills snake" type lock and key. I believe that this is the original lock and key. Think there are many variations in what Watling manufactured, assembled and released over the years.

[mrslot1]

Watling used Yale keys too!