Pics needed for a forum post on vintage rifle scope mounts

A friend recently picked up a Gewehr 1888 and we’re trying to find a way to mount a scout scope rail… Pics for that thread re-hosted here so i can post them instead of stealing someone elses bandwidth; where the pics are from; http://dutchman.rebooty.com/ler.html

The 88 rear sight;

The concept I am suggesting, that is common these days fro Mosant-Nagants, Mausers etc from that time frame that all seem to have a folding ladder rear sight;