Cox - 119-L Louis Philippe Dresser
The drawer side that connects to the front & will get the half blind 'tails',
is aligned with the drawer front, with the pins cut in it, & clamped into place.
Note it too has the marking gage etching - set the same as the pins (5/8" heavy)
- this mark serves two purposes:
lets me know if the router adjustment has slipped &
serves as a 'chip breaker', minimizing any wood chipping out below the mark - you hope