This catalogue is the first edition of the “Muschelleuchten” from Lüber.
It has some shell-lamps that is NOT originally made by Panton.
The “V 68” (see above) and the “R 68” (not pictured here) are lamps that Lüber made themselves.
The “V” stands for “VIERECK” = SQUARE.
The “R” stands for “RUNDE” = ROUND.
When Panton saw it, he imediatelly wanted them to change the catalogue.
And Lüber agreed,so the grey catalogue wich is the 2:nd edition only keeps Panton originals.
You can see it under “LITERATURES” here at Pantonworld.