Quote:
Originally Posted by Stefan Buda
Thanks Clive.
I believe that it may be the only one ever made or at least the only successful one made by an amateur, as I have never seen any proof for the existence of other ones.
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Harrie Rutten told me that he is aware of several Companars successfully built, the largest one being 12 inches. It was also commercially offered (at least at some stage) by Oldham Optical in UK. I don't know how many of those mentioned by Harrie were amateur creations though.
Bratislav
PS most of that old "landfill" glass was made by Chance Pilkington and on larger pieces it has melt data numbers scribed on the glass