Wilhelm S. Schroeder Nachfolger (Max Wollstein), Berlin
The second example is a hold-to-light card which must have been made by a specialised manufacturer, see more
here
and
here
.
WSSB 1061-4
WS+SB 1255-5
WSSB 6878
WSSB 1061-4
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WS+SB 1255-5
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WSSB 6878