This is a pair of Harley Davidson Wide Glide fork sliders, these are for Softail or Dyna style forks that use a 21 inch front wheel, some corrosion can be seen in one picture, there are no internals, just lower sliders, dust boots and one chrome caliper. This is 41mm Showa.
This is a new in the box rear brake master cylinder made by V Twin Mfg. Part number 23-0750. This fits Harley Davidson Panhead Duo Glide and Shovelhead Electra Glide with rear drum brakes. Original Harley Davidson number is 41761-58B, this is a painted not chrome. Wagner Lockheed style. with chrome cap.