Square right angle glass prism
1850-1924
Prism and brass tube
1850-1924
Glass prism with lugs, in shaped sharkskin case
1745-1755
Prism on adjustable brass stand by W. & S. Jones
Glass prisms in box
1850-1924
Double prism on ornamental stand Boggetts patent
Glass Prism (1860-70)
1860-1870
Glass Prism (c.1770-80)
1770-1780
Glass prism (length: 16.5cm.) with lugs (for mounting in frame)
1701-1800
Rectangular right angle glass prism
1900-1924
Green demonstration glass prism with cord attached to mounting lugs at eachend
1701-1800
Rectangular glass prism
1845-1885
Glass prism in wooden box
1850-1924
Prism on brass stand with ball and socket joint and bone handles
1890-1900
Prism on metal stand with 3 brass legs 19c, B802
1800-1899
Glass prism in ball and socket joint on stand
1828
Glass prisms in box
1850-1924
Glass prism
Set of 3 old prisms; chipped
1795-1805
Four glass prisms
1900-1924
Triangular glass demonstration prism with fruitwood end-piece and finial handle
1700-1799
Set of 3 prisms (2 crown glass, 1 flint glass), in red leather case
Glass prism (length: 16.5cm.) in fishskin-covered wooden box
1701-1800