So, anyone have an idea on what is going on here:

http://www.ebay.ca/itm/261910330019?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Is this a modification or a weird factory special? I was just wondering the other day if it would be possible to convert one of my compact macs to a green phosphor screen just for fun, when I came across this listing. Perhaps it is a tube out of a IIc monitor?