Front Side Light Removal?

["Original Music" <originalmusic@adelphia.net>]

Hi. Front Side Light Removing on a TR250 (or TR4)? Could someone please
describe the removal of this chrome piece? I've popped off the trim pieces
up to this piece and although it is a little loose, I'm afraid to yank on it
too hard. How is this attached and what is the best method of removing them
without damaging the fixture or the rubber gasket?

Bob
TR250