u/Puzzleheaded_Spot_13

​​ this is a medal from 2015 that had been sitting in a drawer for a decade.

​​ it was gold coloured and heavy, and now it has some sort of oxidation that makes it go silver

Coincidentally the ribbon was draped over the same Direction as the silver. Could it be contact from the ribbon?

It's not magnetic. 8cm diameter, 3mm thick. About 100g? I don't think it's painted. The iron ring holding the ribbon is rusting.

Any ideas what this is, and whether it can be saved?

I saw this situation. White car at Red. 1.5 car lengths space. Blue car. Another 1.3 car lengths space. Tesla out of frame. These 3 cars in the space of 6 cars on either side.

How much space are we taught to leave?

​​ I thought it was just enough so you can get out of the lane from behind, but a slow turn to get out not floor it from stationary and get out.

​​Strangely when we went to the next red light they left exactly the same amount of space again