A colleague here at Queensland Museum is accessioning a Bausch & Lomb Optical Co. camera lucida similar to this one.
It belonged to C.J. Pound http://adb.anu.edu.au/biography/pound-charles-joseph-13156 who retired in 1932 and appears to be a version of Abbe's design with the 1894 filter modification, probably manufactured under licence from Zeiss.
I suspect it is from the first quarter of the 20th century, rather than the second.
Is anyone familiar with this sort of camera lucida? If so can you comment on the date etc. please?
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