VARIOUS MINING & SURVEYING INSTRUMENTS including, TWO VINTAGE MINING APPARATUSES, comprising Kelvin Bottomley & Baird Ltd. Aitken's Portable Dust Counter, cased with leaflet, and Cooke Troughton & Sims Optical Plummet with 2 tribrachs and 2 interchangable targets, cased, TWO RARE ONE-SECOND THEODOLITES, comprising Hilger & Watts microptic theodolite no.2 with tribrach, and a Cooke Tavistock theodolite with tribrach, together with SWISS KERN K1-RA SELF REDUCING ENGINEERS TACHYMETER THEODOLITE, green painted metal domed case (5)Provenance: private collection South WalesComments: all used condition, working order not guaranteed, Swiss Kern - leather strap broken, inspection advised
VARIOUS MINING & SURVEYING INSTRUMENTS including, TWO VINTAGE MINING APPARATUSES, comprising Kelvin Bottomley & Baird Ltd. Aitken's Portable Dust Counter, cased with leaflet, and Cooke Troughton & Sims Optical Plummet with 2 tribrachs and 2 interchangable targets, cased, TWO RARE ONE-SECOND THEODOLITES, comprising Hilger & Watts microptic theodolite no.2 with tribrach, and a Cooke Tavistock theodolite with tribrach, together with SWISS KERN K1-RA SELF REDUCING ENGINEERS TACHYMETER THEODOLITE, green painted metal domed case (5)Provenance: private collection South WalesComments: all used condition, working order not guaranteed, Swiss Kern - leather strap broken, inspection advised
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
