Product code: Nikon F Eye Level Viewfinder Type 5 (for SN 692xxxx order - 7450960)
Nikon F Eye Level Viewfinder Type 5
Comes in Original Box with Prism Bottom Cover and Nikon Eyecup
This is the one you need if your Nikon F
serial number is between 692xxxx - 7450960
Eyepiece frame order has threads to mount eyepiece attachments
The exterior cosmetics are Ex+++,
but inside there is what appears to be fungus.
You can see it in the last photo