I have a couple of pcs of German cloth insignia that had been scotch taped into a photo album (across the front) Though the tape itself readily chipped off (it was very old) there is a visible adhesive residue.

What is the best way to try and fix this??

Use "Sticky Stuff Remover" any Art store..Michaels!
Works a treat
Seiler (Yank in UK)

Use lighter fluid, it is a lot cheaper and works just as well.
Tom

Goo Gone is by far the best thing I have ever used and have never had any damage done to anything by using it.Even used it to take off tape from a copy of Amazing Spiderman #1.Will not bleed color on anything I have found.