Scale Boxes — Resonator Guitar
Choose a root note — the boxes for all 24 types are drawn with roots flagged.
The Resonator Guitar scale reference, position first: choose a root and one of 24 types, and get boxes drawn on the GBDGBD grid with the roots flagged in every one.
In open g the same letters repeat across the strings, so scale maps here look nothing like standard-tuning boxes — follow the drawn frets, not habit.