There is another post that has 3531 people who have looked at it, and it about knowledge about what you are buying. Everybody is telling each other how to recognize repro signs.
If you are going out to buy anything in this hobby, you should has as much knowledge as possible, signs, globes, salt and pepper shakers, cans, and in your case PUMPS.
I wrote two books on the identification of gas pumps, with their approximate valve, this is what you should have before you even look at a pump.
My book is available from me, on this website, and if you want to order it, from about any large book seller.
Your pump is shown on page 101 of my revised Gas Pump Identification book.
Author, Gas Pump Identfication books 1st & 2nd Editions & Air Meter Identification books
We rebuild ECO air meters and sell parts.