They are much closer to scale than the Tomar 807s. The Cal-Scale Markers are lost wax brass castings and non illuminated, I will drill them out and install 1mm 1½ volt micro-bulbs.
I drilled out the lenses with a #60 drill and then enlarged the hole with a #56 drill that will be the rear of the lamp so that the micro bulb will slide in.
This is what they look like after drilling them out with a #60 drill bit.
The two lamps on the Dime are 1mm 1½ volt micro lamp that I use in the Cal-Scale markers.
I used a drop of glass stain to make the lenses.
In the picture above my AC-9 has both the Number Plates and Marker Lights are on.
The picture above shows four Cab Forwards with the Cal-Scale markers installed ready for paint.