I bought these binoculars when I was a child for birdwatching so they must be around 40 years old! They still work but I found that if you turn the focus wheel in one direction the eye-piece element comes off the main structure (see one of the photos). They are 8x30 magnification.
Possibly adjustable / repairable - I have a newer pair which I use instead so these are free to anyone interested.
Binoculars (8 x 30) - very old and possibly broken (Kirkley NR33)
This offer has been gifted to someone and is no longer available.