James Hammond obtained a patent for the construction of the machine in 1881, and its serial production began in 1884. The presented model 12 was created in the early 20^th century in two versions; one was characterized by an arched two-row keyboard, typical of the early Hammonds; and the second, with a three-row keyboard, was typical for three-register machines. The final version, seen in the presented object, was introduced at the end of the nineteenth century along with the growing competition of lever-typing machines, with a typical arrangement of keys in straight rows.

An eccentric and a visionary. A genius and discoverer. But, above all, Nikola Tesla was an inventor, holding almost 300 patents, patents which protected his 125 inventions in several dozen countries around the world. His inventions have completely changed human civilisation. It is also worth remembering that he was almost forgotten, deceived and ridiculed in his own lifetime. Others stole his ideas and he was unable to turn them into a financial success.

The Bar-Lock typewriter is a patented design by the inventor and lawyer Charles Spiro in 1888. The presented model 10, was produced from 1900, under the brand Columbia Bar-Lock (in the United States) and Royal Bar-Lock in the British market. The keyboard used in the presented model is full, provided with 78 typing keys and one function key. The keyboard, constructed in this way, was adapted to English characters. For the needs of the non-English market, machines were produced with a set of 86 keys and only under the Royal Bar-Lock brand.

Presented device was used for juicing fruit. Its effect was to crushing the fruit in a wooden barrel with a large knob located above it, combined with a screw placed inside the device. In this way a fluid, which presumably used not only for food but also for the preparation of various, often health potions.

While the camera obscura was the prototype of a camera, the magic lantern had the same function, i.e. a that of a cinematographic projector.
A dark room and a blank wall. If necessary, a white sheet can be hung on it.

The “Mercury” Stereoscope is a Holmes system stereoscopic viewer for stereoscopic photographs, with a single 7 x 7 cm image, produced in 1900–1920 by Underwood & Underwood from New York (USA).
One of the simplest designs of stereoscopic viewers was the “open” viewer system, invented by Oliver Wendell Holmes in 1861. This was an extremely simple design, equipped with an eyepiece with lenses, including an appropriately curved wooden or metal sun visor. The Underwood & Underwood Company sold millions of stereoscopic photos, thanks to this very cheap production model of the viewer.

The mechanism of the gramophone is placed in a box made of oak wood in a natural colour. The casing is modestly decorated with simple mills, the front wall bears a metal brass secession plate depicting the muse, Erato.

In peasant farmhouses butter was usually made by whipping cream in wooden stave churns. However, this must have been an exhausting activity: hands fainted and the back numbed. Nonetheless, whoever has ever tried real cottage butter shall never regret the effort.

“Magic Lantern” – a projector for large-format transparencies framed in glass frames with a maximum format of 15 x 15 cm. The projector was produced over the years 1890–1918 by an unknown manufacturer in Austro-Hungary.
Magic lanterns were devices known since the Renaissance times, used for projecting pictures painted on glass onto the screen. Later, they began to be used for displaying photographic images – diapositives.

The Ernoflex (Model II) is a single-lens reflex camera with a folding structure, for cut film and glass discs, with a 9 x 12 cm format, produced in 1910–1920, by the company Heinrich Ernemann AG from Dresden (Germany). The camera body is double-folded, made entirely of metal, and covered with black leather with a decorative texture.