First of all, this is an old thread and I now have Swedish catalogues for 1917, 1927 and 1934. In a separate posting I will list the named objectives in these.
Schneider appears first around 1927 with Xenar - no sign of export here before that date.
I enclose the Rodenstock hemi-anastigmat and heligonal page from 1910. The 110mm size 0 hemi anastigmat was gone by 1917.
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