Unfortunately, the glass bulb of the four ordered me lampshades are all different in size (height), hole diameter above and glass thickness. Plus different sizes of the mounting screws and a mounting of the fummilige Schrims on the socket. In addition, fit only specific lamp types (Paulmann energy saving lamps in lean design) in the version that was rarely found at the hardware store. Because I wanted to use LED bulbs, I had to eventually drill into the metal frames new holes for mounting. Should the glass be broken down times (eg for cleaning), then you have to be very careful that the metal sleeve of the socket does not fall off.
