I have a SEI Exposure Photometer, as can be seen on web pageshttp://kcbx.net/~mhd/2photo/film/expose/sei.htm
(no case, though).
I'm told that this device is extremely accurate and is prized by those who are very fussy about exposure. I'm interested in who might want it, and what it might be worth.
(I live in Vancouver BC, but I will be in the UK in September of this year.)
Thanks. --Howard Cherniack