'Preserving: Eggs to be preserved whole in the shell should be clean and dry, but do not wash them as the shell is porous and this practise can cause disease. Instead, wipe them with a damp cloth and then a dry one. You can then rub them with buttered paper or liquid paraffin so that all air is excluded and they will keep for six months or longer.
Storing in isinglass: When I was a chil we used to store eggs in isinglass, which can be bought from a good pharmacist. The eggs are layered point down in an earthenware crock or glass jar. You pour over the cooled liquid, ensuring the top layer of eggs is completely submerged, and then cover to keep out bugs and dirt and to prevent evaporation. Eggs stored like this will keep from six months to a year, but they should be used for baking or made dishes as they have a slight taste if boiled or poached and the shells will crack if boiled. After six months the whites go a little thin so they are not really suitable for whipping.'
Hope this helps whoever it was that was wanting info. I'm afraid I tend to get a bit lost while I'm trawling through the postings
