Antiques

This is a two-tone brass objective lenses by Sibert who much later joined with Gillett to form the Gillett and Sibert (G&S) microscope company who were the last of the UK manufacturers to cease trading during the 1980's. Complete with original cases. Standard RMS screw thread. Not often found

Annoyingly there is no makers mark on this fine early brass objective. The two-tone styling and the objective brass pot suggests an early Swift, but that is conjecture. Anyway, it is a fine antique oil immersion objective with a numerical aperture of 1.30 and corrected for 170mm tube length

This is quite a rare unit from the days when blood cell counting really was 'counting' (I did it myself back in the day!). It was used for counting both red blood cells and white blood cells by literally seeing how many were there in a diluted sample of blood against grids on the slide. It is complete with the sampling syringe, coverslips that are held by two clips and most importantly the original case. Not too many of these around now.

Richard Beck and Joseph Beck form the microscope company R & J Beck in 1854 and are generally recognised has having improved the quality of microscope production during the Victorian era. This is a x10 objective finished in brass which is in reasonable condition for its age. It would date from 1900 or so