Nikonclassics Michalke - Nikon As-1 Flash Unit Coupler F2/F To Hotshoe
Nikon AS-1 Flash Coupler (Standard ISO Hot Shoe to F2 Camera)
Nikon AS-1 Flash Coupler Black (ISO To F2) at KEH Camera
Amazon.com: Film Digitizing Adapter Set with LED Light Replaces Nikon ES-2 Convert 35mm Negative Film & Slide to Digital Photos Images for Canon Sony Nikon Lens : Electronics
Nikon F2AS, w/ CH-4 Hard Case, F2 Flash Unit Coupler, 3rd party Grip | eBay
Nikon F - F2 flash hot-shoe adapter – TheVintageLensGuy