Direct Vision Spectroscope by John Browning
Direct vision spectroscope signed John Browning 63 Strand London in three sections in fitted box with key. The centre tube contains an assembly of five prisms Box 7.3" (18.5") x 5.25" (13.5 cm) x 2.75" (7 cm) assembled 18" (46 cm)
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Boxed Direct Vision Spectroscope by Browning 1
Boxed Direct Vision Spectroscope by Browning 2
Boxed Direct Vision Spectroscope by Browning 3
Boxed Direct Vision Spectroscope by Browning 4
