You could zoom out on the recipe picture so you can see all the ingredients and quantities, then do some Google searches for ammonia cookies to find ones with similar ingredients. From there, you might be able to figure out your unknown measurements from "context clues" in the Google'd recipes.
From your recipe, I couldn't even tell you how many eggs you're supposed to use. Is that supposed to be a "3" (with the bottom curve closed into a loop)? That's not a number (or a letter) that I've ever seen.