Automobilia collectors, please help WIW!

Giles, you should try and get the dbl visible pump especially if the globes are original. the pic looks blueish, when they should be clear. also, they date about 1920's, I'm not sure how the glass was made for them, but it is possible there could be air bubbles or mould marks in the glass that can help you decide if they are original or not.
if they are not, then the value drops a fair bit.