Here is a Sprenger Beer Tap Marker from the Sprenger Brewing Company located in Lancaster, PA. This Sprenger Beer Tap Marker is from the early 1930s era and is in excellent condition for its age.
This knob was made by the R&R Electric Corporation located in Mt Joy, PA. This particular style of beer tap knob is one of the earliest known types to exist. These were produced shortly after the United States government mandated that all breweries had to have their own tap handles so they could be identified when served at establishments such as bars, hotels, and taverns.