"Radium" water filter complete with perforated earthenware plate and stand, English, 1901 to 1930 "Radium" water filter complete with perforated earthenware plate and stand 1901-1930
Radium water filter with upper resevoir jar, perforated earthenware plate, and tripod stand, English, 1901 to 1930 Radium water filter with upper reservoir jar 1901-1930
"Radium" water filter base jar with perforated earthenware plate and stand, 1901-1930, English "Radium" water filter base jar with perforated earthenware plate and stand 1901-1930