Imperial fluorescent screen (probably barium platino-cyanide) mounted in unglazed wooden frame
- Made:
- 1900-1924
Imperial fluorescent screen (probably barium platino-cyanide) mounted in unglazed wooden frame, in cardboard case, 1900-1924.
Imperial fluorescent screen (probably barium platino-cyanide) mounted in unglazed wooden frame, in cardboard case, 1900-1924.