I seem to have an affinity for Berge and his telescopes, probably because they are ‘almost as good as’ Ramsden scopes, but much cheaper! Nevertheless this one was really really cheap, because it has no objective lens, nor the metalwork that wraps round the objective pair. After cleaning it up, and re-polishing the wood, it makes a good display item, and even has the original brass objective lens cap, to make it look complete!
Engraved as “Berge London”, and “Late Ramsden” on the next line, the initial letters of these two lines are next to the eyepiece, ie on the opposite side to the standard format that was mostly used after about 1790. But Matthew Berge was just a bit of a traditionalist, and stuck to the old format, because he took over from Ramsden in 1800. He worked at 199 Piccadilly, maybe until 1817 – he died in 1819: but we don’t know for how long he leveraged off the Ramsden name and quoted “Late Ramsden” on his scopes. Then the business was taken over by a further two ex-Ramsden employees who had also worked for Berge, called Worthington & Allan: Nathaniel Worthington continued this business until 1851.
So the scope is around 200 years old at least, is an impressive size, and a modern design for the era in which it was built: leading the field in design, as Ramsden also did!
This is a four draw mahogany barrelled brass telescope, measuring 10” when closed up, and 35” when opened out. The outer diameter at the objective, 2.25”, makes it a fairly hefty instrument. The objective lens thread is around 2” OD, and when fitted with the objective lens from telescope #271, a similarly sized unit from Spencer & Co (see the story posted 30 Dec 2016), the combination works and focuses very well. So I just need a 2” OD objective with a focal length of around 27” to bring it back into operation!
What is the future for this?
Accession number 292: it will probably end up on the wall at the Goonhilly Visitor Centre in Cornwall, where the original trans-Atlantic radio telescopes are being brought back into operation for space research. That is, unless someone wants a lovely 200 year old talking point for about £100, which is what I think it’s worth. Unless I find a good spare lens assembly!
Accession number 292: acquired in October 2016, from an Ebay supplier, based in Ashford, Kent.