Vintage Coca-Cola Advertising selling

I have 9 Coca-cola vintage metal pieces. They are from the 60's. These were used in the montreal Olympic stadium as advertising signs on the consession trays people used walking up and down the selling stairs selling hot dogspeanutscotton candy and etc. These are rare pieces. See photos for condition.

I am asking 70$ a piece for them.I would take 600$ for all 9 pieces.