1952-53 KLUSON DELUXE "NO LINE" TUNER - BASS SIDE

No-line, Single-ring, Often referred to as 'Sealed' tuners.

This version is seen in the middle-to-late 1952 Les Pauls on into middle/late 1953 Les Pauls.

These are a transition model that retains the gear casing without the worm shaft coming through, but the lettering in the middle of the gear cover disappears. These have the small lubrication hole. 

Notice the lack of lettering in the center - hence 'No Line', and the worm shaft clearly not protruding through the side of the gear cover.

This model loses the 'PAT. APPLD.' lettering on the bottom face of the gear cover.

Also notice that the vertical lines wrap around the bottom of the gear cover slightly; an indication that the stamping dies were still a work-in-progress.

On the bottom side of the tuners stamped into the metal it says "2356766 PAT. APPLD."