Trial frame in original box
1950-1960
Graduated adjustable metal trial frames
1891-1910
White metal frame
1900-1940
White metal and gilt frames
1914-1934
Black steel trial frame with spring clips for lenses
1851-1910
White metal testing frames
1900-1930
Metal and enamel(?) trial frame, adjustable ear an
1900-1940
Metal, trial frames
1900-1914
White metal and brass trial frame
1935-1945
White metal frames
1900-1920
White metal trial frames
1900-1940
Metal, trial frames
1900-1930
Plastic trial frame
1970-1980
Trial frames
White metal trial frames
1900-1940
Metal trial frames English(?), 1900-1930
1900-1930
Aluminium(?), testing frames, lorngette type, hing
1900-1914
Graduated semicircular metal trial frames
1891-1910
Pair of steel trial frames
1851-1910
Pair of steel trial frames
1851-1910
Metal testing frame
1900-1914
Metal testing frame
1900-1940
Trial frames of metal
1900-1914
Brass and white metal frame sliding bnar
1900-1940
Metal trial frames, plain, English(?), 1900-1930
1900-1930
Aluminium(?) halfmoon testing frame, single drop c
1900-1940
Metal trial frame with triple-hinged nosepiece and interpupillary gauge on lenses
1851-1910
Brass and white metal test frame
1900-1940
Oval steel spectacle frames with articulated side-pieces and screw fittings
1891-1930
Trial frame
1901-1930