Old or 'aged' topo maps are cool, I went to a lodge far out in the Kalahari once and they had some magic looking maps up. I was impressed that they'd leave such valuable old used maps in public areas, then I looked closer and saw they were standard govenment survey issue maps with a stained wash over them and made to look like old prospecting maps with fold lines tears, notes in 'old script', scribbles and dirt marks, stains etc ! Very convincing and maps of the area make it so much nicer. I plan to do that with maps of areas I've hunted or guided in my home. The ones from the survey office are really cheap and of course the authentic item.
Chrisg