2 spots made in bakelite.
These were used for medical applications, they were provided with a heat lamp
Indication on the basis “Bestrahlungsdauer max 15 min”
Fabrication mention: KB15 JR2 / 3
Length base: 18 cm
Height: 18 cm
Diameter: 9 cm
Both are in mind condition / bakelite showing no cracks
Electric fully OK
Sold as a set
Photos are part of the description.