The museum of measurement
The museum of the weight and measure of the city of Tabriz was established starting from the year 1380 (Solar Hegira) in the spaces of the Salmasi House which dates back to the Qajar era and was built in 1381 (Lunar Hegira) on three sides of the courtyard (width 650 square meters) on two floors with foundations of 875 square meters.
The building consists of an entrance with brickwork, a vestibule and an entrance corridor to the large room with a fountain in the center, a large living room with three doors to the north and living rooms (for residential use) adjacent to the east and west, a water warehouse and a small garden.
The main part of the building is located on the northern side of the courtyard. Even the facades located to the west and east have services and rooms for residential purposes. In the adjacent entrances of the western hall, two colonnaded iwān have been added.
The lower floor of the northern hall is used as a large room with a fountain in the center and as a summer residence.
The building has ornaments in the center of the room, around the arches, ceilings and fireplaces. The ceiling of the north hall and the north facade from the inside of the courtyard have stucco ornaments along with mirror decorations. The sliding windows with colored glass and the workmanship of the stucco and brick portal presents the appearance of candelabra. The arch of the vestibule is covered with embossed bricks and the ceiling of the room with the fountain in the center has a four-sided arch. The columns of the iwān have worked stucco capitals. The museum displays various weight instruments such as goldsmith's scales, large scales used in market squares, the stone weigher, oil containers, instruments relating to astronomy such as the astrolabe, measuring instruments relating to meteorology, compasses and clocks from past centuries. A five-million-year-old tree trunk dating back to the Pliocene and Cenozoic periods is also preserved in this museum. Over time, the material of this tree has transformed into silica stone, fossilizing itself. Also the pots and sections of this tree, with the absorption of organic substances, hardened and the outer layer took on a color similar to that of rusty iron. In the museum of weight and measure there is also an example of the first existing petrol pumps in Iran which is a hand pump. This is about a hundred years old and is an English production. In this museum there is also a historical clock with the image of Caesar Augustus, Roman emperor made in the 17th century AD in the city of Cannes in France.