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Reseau grid (200 x 200 mm) by P. Gautier

1884-1890

Reseau grid (160 x 160 mm)

1884-1890
Made by donor, who specilaised in this work. AM ref 14B/660; 5" lens.

Torpedo Training Camera Assessing Graticule

Selection of graticules and wedges made by donor, who specialises in this work.

High-resolution graticules