Glass discharge tube
Glass discharge tube
Glass discharge tube
Glass tube, possibly a discharge tube
Glass discharge tube
Glass discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tubes, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tubes, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Discharge tube
1900-1925
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Glass tube, possibly a discharge tube
Discharge tube with disc electrodes
1900-1925
Discharge tube, glass, English, 1900-1925
1900-1925
