Ah, thanks. That confirms the Orkney Street factory was on the Macaulay exchange _before_ the 'new factory' on Wandsworth Road was opened in 1953. It narrows down the date of the photo to either pre WW2, say 1933 - 1939, or post WW2, 1945 to 1950. But I think the exact date of the photo has now become a side issue, given the amount of informat1on now assembled about Fryer and it'd Orkney Street factory.
Very many thanks to all who scratched their heads and thought about this. I now have a pretty good picture of Fryer's London activities before and after the war, which is a solid foundation for going forward if it's wanted by the group down here.
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