I wear a condom because I get a boner.
I try to wear cotton gloves whenever possible, but at the very least wear them when handling medals. Dealers at shows also seem to appreciate you much more when you show care by handling their items with gloves.
When I handle my patches and medals I don't wear gloves. The items don't get damaged, don't worry. They're all in sealed cases. They will see the next century.
Nazi Germany may have ended a long time ago, but it's items may last forever. At least the metal parts.
I was at a military museum recently and noticed a sword in the display case had fingerprints that turned to rust, they made the mistake of handling it with bare hands before putting it in the display case, for short term you wont notice if you wipe them off and check them often, but for long term storage or display, sweat from handling could cause damage over time
I dont wear gloves, but I have dry hands and live in a low humidity environment
firearms always get wiped off with a gun cloth before putting away
A good question, and some fine advice from fellow members.
I would care to add a little advice regarding paper items...
Firstly, for those with precious (aren't they all?) examples, who wish to keep them safe from harm but still desire to show them or admire them on display, scans of originals, if well presented, can make excellent display pieces. Signed documents are a great example in this respect. This allows one to keep the original piece safe and sound, whether it be in a safety deposit box or wherever. With regards to the actual storage of paper pieces, acid free plastic sleeves are a fine option, but remember that sunlight and air are paper's enemies too, so with that in mind, keep them in an airtight, dark place without exception.
Currently working on several KZ related projects, including items for the USHMM, Groß-Rosen Museum and various private concerns and studies. Available as a guide to KZ sites, contact for details.
"maka akaŋl oyate maŋi pi ki le, tuweŋi wíyópeya oki hi sni"
Grainger's has cotton inspection gloves 12 pair for $8.37. I have some, I don't use them for everything - but when needed they come in pretty handy.
CONDOR Inspection Gloves, White, Cotton, PK12 - Inspection Gloves - 4JC99|4JC99 - Grainger Industrial Supply