Am working on the date of introduction of Böhler Antinit Laufstahl. I found mention of a 1913 advertisement listing "Antinit".

How long was the 'Star of David' trademark used? This is a pre-1924 J.B. Ronge & Son, Liege



Thanks all.

IGOR: did Buturlin provide a date of the tensile strength testing? It had to be after the introduction of Krupp "Nirosta" in 1913. There appears to be a '1925' with the Russian Siemens-Martin steel. Thanks again!!