Paralex old wooden double. Late nineteenth century - early twentieth c

Description:
Beautiful old wooden double Paralex. It is a tool for technical drawing, that could be the end of the nineteenth century - early S.XX. The unions have, like brass or brass. It has a peculiar and unusual design. There are not many PARALEX of this style and this time, since they can break very easily. It is a very curious element and is in perfect condition for use. Data here are personal opinions not proven.