Mysterious Object Needs to be Identified

[alchemist]

When I removed the radio and the clock from 67 230 SL dash, a mysterious object fell down from behind the cigarette lighter/blower switch. When I looked at the configuration of what is attached to the dash, I cannot find any of the instruments match this object. Does anyone recognize this mysterious object?? Photo attached

[66andBlue]

The object is part of the heater control unit with the tiny light bulbs that illuminate the levers.
take a look here at the photos:
http://www.sl113.org/wiki/Electrical/ReplaceHeaterLeavers

[alchemist]

Alfred: Thank you for your help. I can see the function of the transparent plastic housing, it is for lighting.

[mmizesko]

It can also be used as a shot glass, to administer schnapps or another anaesthetic required while putting your hands behind that tiny dash.

Mike

[66andBlue]

Mike,
be careful, the kind of liquid that you fancy would dissolve the plastic! 

[alchemist]

As a chemist, I can tell you that the plastic is made from polycarbonate which is plexiglass. Schnapps will dissolve this kind of plastic, but not immediately, it may take sometime. I better drink it quickly in the femto second time frame before some of the polycarbonate will go down the throat.  LOL