This is a complete template set for a Martin 12 fret Dred. The template is set up with forward shifted bracing location pre 1937. The template allows you to plot bracing. The halos allow you to use them when clamping to assure proper placement and then to use them to make the notches in the kerfed lining for perfect placement and center . It removes the guesswork. The templates are done on CNC and will work with my molds . We also carry template sets for most all Martin sizes.
this is long scale 25.4