A matched set of two FLIP n FILE boxes, which were designed for 15 5.25" floppies each. Quite neat in that they close up so are not easily spilled all over your desk. One is officially labeled 3M , and the other Flip n File/15. Fraternal twins, say I.
Three paper inserts in the two boxes, and thoroughly cleaned of a bit of dust. They were stored in boxes, all sealed properly and stored in indoor setting for this time.