Here are the possible solutions for material used in the faces of the clock above the information stand in grand central terminal clue
Answer
Clue
Relevancy
opal
Clue
Material used in the faces of the clock above the information stand in Grand Central Terminal
Definition
an amorphous variety of silica
mta
Clue
Inits. at Grand Central Terminal
ptomaineconcourse
Clue
Warning sign at a train station's food court? (NOTE: The original sign, without my additions, actually exists. It's in Grand Central Terminal in NYC, on the lower level — the food court level. The sig