Re: Bee-yoo-tee-full 10C on eBay Message #10 Posted by Paul Brogger on 26 Jan 2006, 12:04 p.m., in response to message #9 by Howard Owen
I'm guessing an extended period of exposure to moisture (high humidity perhaps?) or maybe something caustic. It looks like the aluminum faceplate is extensively oxidized, with loss of ~50% of the black background. Someone has tried to fix that with a marker. (I recognize that from my own attempt to hide scratches on the face of the first HP-48 I disassembled -- oooops!)
If that is the case (very punny!), it's not surprising that the keytops look relatively unaffected. (What is surprising, however, is that it still works -- if indeed lots of moisture is the culprit.)
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