01-10-2015, 09:53 PM
I have never seen anything like them in any magazines from the period. It's for that reason i.e. intense curiosity that I'd like to track their provenance down and learn more 
Lawrence/Ed you mention Philips made something similar. Do you know of any references I can look at?
Nick

Lawrence/Ed you mention Philips made something similar. Do you know of any references I can look at?
Nick







