This is a bill from the Civil and Municipal Engineer Office in Ridgefield Park, New Jersey for Sewage Purification from 1916! I love this stuff! 1916!!! That’s before World War 2! In fact this bill was issues while World War 1 was going on, before the 1920s was in full swing! It might be silly to get excited over these small and rather irrelevant documents, but this is history I’m holding in my hands I love it! It excites me every time I look at these documents!