FIRSTY-Besty ;)
Thanks for the reply, it's great to know someone else can benefit from my research!
I need to add a note to the use of an Oxygen Absorber, it contains Iron Filings, which "oxidize" meaning it Rusts. The Iron (Fe) absorbs the oxygen in the box by Rusting! So it must be kept totally off the items to be protected. I will get a perforated plastic box to hold a few in I guess!