Blackham's Patent Surveying Level
trade card; leaflet; advertisement
Blackham, Henry
Europe: United Kingdom, England, Staffordshire, Wolverhampton
Late 19th c.
overall: 259 mm x 206 mm

Leaflet promoting a self-levelling surveying level with a line drawing, directions for use and price details. Printed in dark blue on one side only of a single sheet of white paper, with a general business advertisement at the top featuring 'Peeble glasses' (sic), Fitzroy barometer, spirit level, rule, lorgnette, spectacles and folding eyeglasses, opera glass, hand lens, thermometer, barometer, dissecting microscope, table stand telescope, compound microscope, pocket compass, microscope, globe, telescope.


Gift of Mr Tony Blackham FCOptom, 2016

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thumbnail Model of Henry Blackham's Patent Surveying Level
Blackham, Henry
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