Burndept Ultra IV wireless receiver, glass back No. 4798, 1923
1923
1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
c. 1908
1920-1930
1926
circa 1910
1922-1923
1906
1926
circa 1900
circa 1900
1912
1920
1900
circa 1900
1926
1912
c. 1908
1926