S Blueh, Vienna

The initials in the logo run differently in the first two undivided cards. The third example shows the numbering system adopted with two consecutive numbers which was used thereafter. The fourth is an unusually shaped card.

S Blueh became an associate company of Rotophot Berlin, after which the logo incorporated the RPH roundel underneath the SBW. This is covered here.

At this link there is a large collection of illustrations of Bluet cards, with many of the subjects identified.

SBW 807-8
SBW 1007-8