Kähler art pottery Small dark brown table lamp from the 1970'es

Kähler art pottery large, small dark brown table lamp from the 1970'es. Decoration number 623/15. There is a little difference in height on the two lamps even though they have the same decoration number. Height 22.0/21.0 including socket and 14.5/13.8 cm. without socket. Perfect condition.