“Found on the dashboard of an old GMC. A Lucite-like material, with ridges.”
Answer: "It’s a traffic light viewer. Traffic lights back in the day were mounted on the same side you stopped on, which sometimes made it difficult to see the light if you were first in line. This helped reflect the light from above, so you could tell when the light changed."
I think it might be the 95th time I have seen that picture on this site, and yes, old toothbrush :)
Yeah, how could a sponge be used for RFID?
Yeah, Izi, we've been over this before.