Here is an American Flyer track terminal to hook up your transformer (power pack) to the two rail American Flyer track. These are also used for some accessories.
This is the standard version with the Fahrenstock Clips.
MOST IMPORTANTLY, this is the BLACKENED RAIL version from 1946. It was included with the earliest S scale sets in 1946 that had the chemically BLACKENED TRACK.
If you have one of these sets, your common 690 will really stand out--go all the way with your set's completeness!
This one is clean, definitely set worthy. A little bit of oxidation on the back. Ready to use.
This one is complete and ready to use.