The discus broken out around the filling hole. The top not set square on the bottom of the lamp.
On rim, a row of impressed circles of graduated sizes.
On the discus, only very slightly concave and not ... 17 March 1933
On rim, a band of short parallel lines.
On discus, a square panel bounded by a frame of small concentric circles set side by side. Above it (toward the nozzle), an arch of dots and short parallel lines ... 16 March 1933
