How much is this camera worth?

I have a 45 year old Nikon F Photomic, received from my grandfather. It's in excellent condition, and came with a 50mm f/1.4 lens. I have no use for it since I don't have any access to new batteries, and wanted to get a little cash to have on hand.

If I had something that had belonged to my grandfather it would be proudly displayed, perhaps with his picture and some pictures he took using the camera. I'd never consider selling it.