Im not sure how many members are on this board located in the SouthWest Florida area but I figured it’s worth a try. Yesterday while Northbound on Rt 75 at mile marker 200 at around 1730hrs(Sarasota/Venice area). I noticed a rather large aircraft flying parallel to Southbound Rt. 75 approx. 1500 AGL. As the aircraft approached I noticed no. 1 engine was missing. It was not shut down and feathered but actually missing. I am a 20+ year AF veteran with a couple thousand hours and some change under my belt so I know what missing parts on an airplane looks like. I also know what the regs say about ferry flights,this aircraft looked like a DC-3 so not only would a ferry flight not be allowable ,but probably impossible. I checked news and FAA incident reports for yesterday Sept. 30 but came up empty. If anyone in the locale yesterday saw this or might have some info. on what I saw please let me know.