Aye Brian, well Peter did say if they have the R.C. number one, two or five they would be ok, so you have been keeping this under your hat! It is good the printing comes off that easy, I was going to use fine steel wool or Vim, meths sounds better.
Hardly under my hat, I have mentioned it before several times, sent drill bits, tools and all manner of small items all over the country in them to forum members.
Ideal as postal tubes, drawer storage etc, a little bag of silica gel a chunk of steel pop the lid on and you have a dry storage through a damp winter in the shed init?
I keep all my grub screws, small drills lots of lathe fiddly bits in em, easy to label, wrap a lastic band around a few and stand em up or lay em flat simples init?
Nobody takes any notice of my tips until someone else comes up with what they think is a new idea I used to it init?