I hate to say this, but the teardrop bells in Illiopolis and Blue mound and Pawnee, IL are all gone as of 2020. NS replaced Blue Mound with a GS Type 3
and in Illiopolis NS kept everything original at the crossing, but then replaced the gated signal (which had the teardrop) with a full on seimens install
Then, in Pawnee, the railroad (forgot the name) replaced the two teardrops there with GS E-Bells. Sad to see these bells go as they were the closest active teardrops to me. The closest one now to me is now an inactive signal at the national museum of transportation. (Besides mine)
Bells go "ding". Lights go "flash". And the WCH Gate Mechanism at Kirkwood Road goes "chigRRRRRRRRRRRRRrrrrrrrrrrrrrrr".