From what I understand, the amount of lume on something like a compass is pretty small and it's sealed under glass so it's probably not too big a deal as long as it's just sitting on a shelf. If you don't take it apart or shake it up too vigorously so you loosen up any lume on it, it's not going to produce much dust, and they're probably not sealed airtight so the radon gas is getting out and dispersing to the point that it's not that dangerous (as long as it's not in a sealed case like that Smithsonian article talks about).
Also, lume that old probably isn't going to glow anymore. I have a 1960 Omega Constellation with radium that doesn't have the faintest hint of glow anymore.
Also, lume that old probably isn't going to glow anymore. I have a 1960 Omega Constellation with radium that doesn't have the faintest hint of glow anymore.
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