VERY RARE - Shimano RX - 100 GT Long Cage Road Bike Rear Derailleur

This is a VERY Rare & Hard to find Shimano RX 100 GT Road Bike rear derailleur - Long Cage Version for a Road/Touring Bike in very good condition !
It looks like it only had light use,  is Very Clean !   Application is the buyer’s responsibility. See the photos for yourself.
There are some spots on main body, but they do not affect its function.
The jockey wheels are in great condition ! They are Original Shimano Jockey wheels. It works as it should. Springs are strong !
It is ready to install & ride.
Classic Shimano quality & performance.
Pictures are part of the description .
Check my feedback & Buy with Confidence !!!
ships by USPS 3-4 day priority mail !
I only sell & ship to the lower 48 United States !I will only ship to the address given to me by E-Bay !
I pack well & ship within 24 hours !