W. R. B. & Co. (Wiener Rotophot-Gesellschaft, Blüh & Co.)
Some cards, including the second example, have the SBH logo (S Blueh) with "ROTOTAGLIO" below on the reverse as well as the W.R.B.& Co. VIENNE legend. Some cards have the SBW-RPH logo on the face. This is
basically the ROTOPHOT SBH arrangement, "Vienne" indicates the intended market was mainly France.
These are half-tone prints. The firm continued producing postcards until at least the late 1920s, marking cards "W.R.B.& Co Vienne III" (or Wien).