Thanks Brian for the reply and information!
Darn, wish I had found this tripod sooner. In all honesty I had never heard of a heliograph until I picked this up yesterday. I love this hobby as there is always something new and interesting to learn about!
My tripod has Mis-Can-Ada Ltd. Ottawa 1941 pressed into the wood on all three legs. Tried to do a Google search for the manufacturer, but all it kept coming up with was Miss Canada, which was most certainly a pleasant distraction.
If you find anything new, please let me know. Would also be interested to know what your battery-powered signal light looks like.
Thanks again,
David