STiL® Magnetic reel-to-reel 1/4 audiotape box - Stil Casing
Old Film Reel Box
I do not know what they have been exposed to or where they have been.
Vintage Metal Empty 8mm 5 & 7 Metal Film Reel / Canister Storage Case in Blue
Capture's Film Transfer - Transfer Old Film Reels to Digital
Vintage Film Storage - Canada
Métal Film Reel Case - Australia
Metal Logan Deluxe 8mm Movie Reel Chest Box Storage Case Film Blue Bruce Vintage
2 unmarked 1960's 8mm reels & canisters. 2 Kodak canisters - general for sale - by owner - craigslist
Métal Movie Reel - Canada