This isn't a display in a museum, it is a (little visited) shelf in one of my local shops. That big bottle up the back is Aeroplane Egg Yellow colouring. I have never come across it before and the way the sides of the container have contracted as the contents have evaporated make me think perhaps it has been sitting here for quite a while. I wonder if Aeroplane make it anymore? It's $2.80 if anyone has been trying to track it down.