Share 'Overheated Century?'

Anybody know what going on here? Lamp had been working great and then the other day I found it like this after it had been running about 10 hours. That's the longest I'd run it in the three weeks I've owned it. Everything I've read online seems to indicate over heating. I turned it off for about 15 hours and tried again and this time turned it off for 18 hours before trying again. This photo was…