Make big room photos like the pros. These Flashguns include a variety of reflector sizes as shown on the link. (http://beachware.com/cave/flashgun.jpg) And there are a few adapters for using different sized flash bulbs. Also included are 163 White Flashbulbs and 92 Blue Flashbulbs that can be used with these Flashguns. These flashbulbs are a mixture of Sylvania 5B & 25B, Westinghouse 5B & 6, GE 5B & 5, and West 6 (with that longburn foil in them). These bulbs give off Tons of light for taking pictures in BIG caves. Way more than an electronic strobe (unless your name is Willie Hunt), and even a lot more light than the standard M3 flashbulb. Note that I have not used these flashguns so they may need the contacts cleaned up and you will need some batteries, but they are in excellent condition and the reflectors look polished like new.
For Sale - Make an offer! (tom@beachware.com)
Or I might even trade for some cave books.