
Hot air recycling heating device
1960s
1960s
1880-1920
1880-1920
1994
1600-1700
1891-1897
1933
circa 1960
1905
1927
1935
1880-1920
1890
1925
1930
1920
1920
1961
1929
1926
1894-1910
1962
1964
1963
1920-1930
1905
1930-1970
1963
1891-1897
1938
1890-1899
1922
1920
1918-1930
1964
1964
1964
1958