Man in light-coloured trousers and jacket, black shoes and headgear sits on a chair and holds 2 trumpet-like instruments to his neck. The instruments shown in the photo are a Nyastaranga (Bengali). The instrument is very difficult to handle and therefore rather rare. Externally, it has the form of a pair of short brass trumpets in a conical, gradually widening shape with bells and mouthpieces. The mouthpiece conceals the tough protective skin with which certain spiders surround their eggs. If the tubes are placed to the right and left of the larynx at certain points on the neck when singing, the vibrations of the larynx are transmitted to the spider webs, which in turn transmit them to the air columns enclosed in the trumpets. The result is an intense oboe-like colouring of the singing voice. It is not actually a musical instrument, as no independent sounds are produced, only the colouring of other sounds (Sachs 1923: 81f.)