Thanks Ann!
Do you believe hand gathered slags were being made in Cambridge because by 1927 they left Payne? Were red slags shards ever found at Payne and if so, it would predate H. Hellmers credit. By 1930-1931 they had 2 to 3 years, along with all the other types, to make all these red slags with 9 & tails before closing.
Still talking to myself...lol
That straight cut line confuses me, in that.......how would anyone do it differently than MFC did with a glob of glass at the end of a punty?