Vintage Oil button / pin back We Check Your Oil !!

Vintage Oil button / pin back We Check Your Oil !!. Large, 3" in diameter! I had purchased a lot of Mobil oil items, and this serviceman's button was in the collection.  While it does not state Mobil Oil, he was a dealer and everything else he had was Mobil, so I will assume this is from Mobil as well. Remember the good old days, when you could just drive up, and a serviceman would come out fill your tank up and check your oil! A nice conversation piece for your collection! Take a look at the photos, as they represent part of my description! Send any questions prior to auction end. Items are sold as shown. Thanks, and good luck!