Ridged and grooved rim, the outer ridge panelled by three cross strokes on either side.
On discus, rosette with pointed petals; ridged rings round filling hole.
Top of nozzle flattened; set off from rim ... 4 May 1932
Rim plain.
Discus, plain, concave, set off from rim by two circular ridges.
Nozzle, well differentiated from body of lamp, and set off by two grooves and two impressed circles.
Handle semi-pierced; double ... 4 May 1932