|A 3 wires||wire 1 Ag||wire 1 Cu||wire 1 Zn|
|B 3 wires||Wire 2 Ag-Pb||wire 2 Cd-Pb||wire 2 Zn-Pb|
|C 3 wires||Wire 3 Au-Cu||wire 3 Au-Ag||wire 3 Au-Cd All soldered to circle 3 or concentric to the first on inner circle A (Ag)|
|D 2 wires||wire 4 Au-Cu-Ag||wire 4 W platinum pastille soldered thereon|
|E 3 circular wires for A,B,C||Ag||Pt||Ag|
|F Platinum pastille on the central wires soldered thereon|
|G 3 wires Soldered to circle D||Wire 4 AG||Wire 5 cu||Wire 6 AG|
|H 1 wire||Single wire Pt|
|I 2 central wires||Wire 2 Cu||Wire 3 W|
|J 1 circular wire||Au-Cu-Ag (alloy)|
|K 1 large pastille||Soldered to wires 2 and 3|
|L 3 strips||strip 1 Ag||strip 2 Cu||Strip3 Ag|
|M 1 wire circle||Au-Cu-Ag|
|N 1 pastille||Pt|
The Rota lamps have disappeared.
The only trace of the existence of these lamps is probably given by a photo of the Rota laboratory in Mont-Saint-Aignan. This laboratory was completely destroyed during the capture of Rouen in June 1940.
Daniel Rota, the son of Louis Rota, thinks that a bailiff's report had been made to attest to the functioning of these lamps, but this document has disappeared.