Hi, I'm BRAND new to this forum, and to the prop world. I've just bought a Graflex flash (spent more than I probably should have), and am beginning the process of creating my childhood fantasy ... an authentic (looking) saber from Episode IV. Have just emailed Gino in hopes he still has some of that T-track, and have devoured this thread. Thanks all who contributed. Question: I'd like to be as authentic as I can to the 1970s era material, and would like to get the correct Exactra 19 or 20 bubble lens. In the interim, am perfectly willing to purchase a reproduction ... can anybody give me a lead on where to buy a reproduction lens, until I locate the real deal?