Victorian Single Draw Hexagonal Marine Telescope by Ross of London

For sale a Victorian Single Draw Hexagonal Marine Telescope by Ross of London.

This beautifully manufactured nickel-plated telescope has its original leather sleeve to the hexagonal barrel and pull-out objective sunshade. It measures 64cms fully extended, 46cms closed and has an inch and a quarter diameter objective lens. The single draw is marked to “Ross London” with a serial no: 34253 and Patent below.

A very unusual telescope style for its period, the hexagonal shape is more commonly found on telescopes prior to the mid-Eighteenth Century. The shape was originally created to overcome material and tooling challenges faced by earlier makers. Barrels were manufactured by gluing together six lengths of mahogany until the developments in the late Eighteenth Century allowed for the creation of thin, lightweight circular barrels which are more commonly encountered.

Ross would have known this earlier barrel style during his lifetime, and I suspect he considered the technique to have some practicality for a more modern Victorian telescope. The shape being much less likely to roll away when placed on a flat surface.  

The maker, Andrew Ross was born in 1798. His Father John was a staymaker based in Fleet Street but given the proliferation of topflight scientific instrument makers surrounding him during his upbringing, it is perhaps unsurprising that he graduated towards the industry and was apprenticed in 1813 to the London maker John Corless for the obligatory seven year period.  As an interesting aside Corless had business associations with a Michael Dancer who was a relation to the latterly famous maker John Benjamin Dancer, both he and Ross were later to make their respective names in the field of microscopy.

Ross left Corless in 1820 and spent three years working for a mechanical engineer before taking up a position with the famous firm of W&T Gilbert. He eventually set up his business from 5 Albermarle St in Clerkenwell in 1830. Often considered a “jobbing” lens maker (albeit a very adept one) until the latter part of the decade, the Transactions of The Society of Arts would suggest differently whereupon in 1831 he was awarded The Golden Isis medal for his dividing engine. Perhaps unsurprising given his experience under the Gilbert business. He is also known to have made his first signed microscope in 1832 for the botanist, W. Valentine, the same design being presented again to the Society of Art in 1832.

The developments in microscopy were trail blazed during this period by Ross, Hugh Powell (of Powell & Lealand) and Joseph Smith (ex Tulley and later of Smith & Beck or Smith, Beck & Beck) and Ross’s skills as a philosophical instrument maker are largely overlooked in preference to his involvement in this discipline. Instruments with Ross’s early address are also seldom seen but were certainly manufactured as it is unlikely that he would have survived on the sale of microscopes alone.

In 1839, Ross moved to a new address at 33 Regent’s Circus and the business was renamed shortly after to Andrew Ross & Co owing to his involvement with the wine merchant and amateur scientist , Joseph Jackson Lister who designed lenses to cancel out chromatic aberration in microscope lenses just as Dollond had done in the Eighteenth Century for telescopes. In 1841, Ross also received another award from The Society of Arts for his invention of the Sphereometer.

The relationship with Lister lasted only until 1842 whereupon Ross moved to 21 Featherstone Buildings in Holborn and continued (under his own name again) to develop improvements in microscopes whilst also maintaining a reasonable trade across all scientific disciplines.

By 1847, the company had moved to 2 Featherstone Buildings, and it was from this address that Ross presented his microscopes at The Great Exhibition of 1851 subsequently