about 100 years old. These were indispensable in the early industrial era.
http://translate.google.com/translate?hl=en&sl=fr&tl=en&u=http%3A%2F%2Fburette.oilcan.
free.fr%2Fpages%2F12.html
1920-30 french catalog attached, it says (and translation):
Burette O.V.P. Brevetee S.D.G.D
translation Oiler OVP Patented SDGD
Propre Pratique Robuste
translation Clean Practice Robust
Se fixe sur un support comme une lanterne; son bec tourne en tous sens,elle sert de seringue on de burette suivant que l’on appuie fort ou doucement.
translation Bind to a support, same as a lantern it’s nose can turn in every
direction can be use as a syringe or a oiler depend if you press hard or softly.
En laiton poli (Polished Brass) Prix (Price) 31.
En laiton nickele (Nickel plated brass) Prix (Price) 33.
more pics avail
