Specifications

1. Shutter Speed Index Line
2. Shutter Speed Dial Release Button
3. Shutter Release Button
4. Shutter Speed Dial
5. Film Advance Lever
6. Exposure Counter
7. Depth of Field Preview Lever
8. Strap Eyelet
9. Self-Timer Indicator Light
10. Exposure Indication Switch
11. Lens Release Lever
12. Lens Locator Mounting Node
13. Flash Synchro Terminal
14. Focusing Ring
15. Distance Scale
16. Depth of Field Scale
17. F-Stop Ring
18. AE Lock Button
19. Aperture Relay Port
20. Film Speed Index Line
21. Film Speed Dial
22. Film Rewind Knob (Back Cover Lock Release
Knob)
23. Film Rewind Crank
24. Exposure Compensation Dial
25. Self-Timer Switch
26. Exposure compensation Index Line
27. Hot Shoe
28. Flash Ready Signal Contact
29. Viewfinder Eyepiece <<< update - I have been told
a Olympus or Pentax eyecups and other accessories will
work on XR cameras >>>
30. Film Rewind Shaft
31. Film Chamber