#optical device

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#Early 20th Century #french made #giroux #historical medical #medical instrument #optical device #precision instrument #vintage medical

#20th century #angle measurement #civil engineering #geospatial #measurement tool #optical device #range finder #survey instrument #uk instrument #vintage surveying

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#19th century #antique magnifying glass #brass mount #collectible magnifier #french optics #optical device #reading aid #scientific instrument #vintage tool

#20th century #emil busch #Germany #gilt brass #leather #opera glasses #optical device #theatre binoculars