This extremely rare silent gravity metronome in metal is signed on the front “PATENTED / BREVETE”. On the back it reads “DRP / 350358”. [D.R.P. - Deutsches Reichspatent]. The DRP, or German empire patent, was a patent, assigned from 1877 until 1945. This patent number was assigned in the year...
An 8-keyed flute by the London maker Josiah BLACKMAN (1819-1886), made from Cocuswood with nickel silver keys, finger hole bushings and rings. The rings are beautifully decorated with the Guilloché technique … also called rose engine turning. This technique is rarely found...
It is known that towards the end of the eighteenth century, flutes with eight keys, or double and alternate keyed flutes were preferred among musicians. Yet things were to change drastically with the Theobald BOEHM (1794-1881)1832 invention – the conical ring-key flute. Sadly, it was to become a beautiful instrument...
Cocuswood is the very dense hardwood of a Caribbean flowering tree called the ‘Brya ebenus’.
‘Brya ebenus’ belongs to the pea family ‘Fabaceae’ and is native to the Caribbean islands of Jamaica and Cuba. It also goes by the quite romantic name of Jamaica Rain Tree because it blossoms bright yellow-orange flowers right after it rains.
Cocuswood’s lovely medium to dark reddish-brown colour is further enhanced with dark blackish streaks. With time, its colour darkens. The grain of cocuswood tends to be straight or a bit wavy. It has a wonderful natural lustre and a fine, even texture.
So absolutely nothing to do with coconuts or coconut trees at all! Really!
With its amazing density, hardness and colour, it’s no wonder that this wood was considered to be one of the very best tonewoods and was widely used in the manufacture of woodwind instruments in the 1800s. It was an exotic, tropical alternative to woods such as boxwood, which were widely used at the time. Flutes, oboes and bagpipes were crafted in cocuswood as well as other items such as carvings or inlays.
Back then cocuswood was all the rage and sadly, due to this previous over-exploitation and the small size of its natural habitat, this wonderful natural resource has been commercially exhausted. So, it is not a protected species, but extremely expensive and difficult to source – making it a very special wood indeed.
Guilloché or guilloche is a craft that was developed over 300 years ago. Guilloché is a special pattern that is created using various overlapping or interlaced lines. To guilloche means then to mechanically engrave guilloches on an underlying material using pressure. This was done using a special lathe by guillocheurs. The special lathe machines can be rose engines, straight-line engines or brocading machines. By using a mechanical technique, greater precision, delicacy and speed can be achieved.
The origin of the first guilloché machines is not entirely clear. Some claim they were Swiss, while others say they were invented by a Frenchman – an engineer called Guillot. Whatever the case, it was introduced into watchmaking back in 1786. It was then that Abraham-Louis Breguet began using the techniques for decorating the cases and dials of the pocket watches he made. Then Peter Carl Fabergé was responsible for making this technique popular in the 19th century with the iconic eggs that came from his manufacturing.
The machines themselves are extremely expensive and rare nowadays and so are the guillocheurs, with very few places offering training in this artisan technique. Guilloché still survives however. Perhaps this is because CNC machines and computers don’t seem to deliver the same cutting quality and refraction of light.
Maybe there will be a guilloché revival, especially in jewellery for example, where people are always looking for a handmade special and unique item. Until then, we can just wonder at the exquisite results of this age-old technique.
