The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 84
which improvements are also applicable todoors.—Jan. 28. David Isaac Wertheimber, of West Street, Finsbury Circus, gentleman,for improvements in calculating machines, part of which improvements isapplicable topurposes whe?-e wheelwork is required./—Jan. 28. John Barrow, of East Street, Manchester… … Sh,,,o,,;,I Plafl. Top V, •0«0»0Y(>*£*P|-; jr? L .
Architecture · Civil engineering · Science
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