Dear Lubka,

Thank you for your request and your patience. The apprised object is a sewing machine made by the company Gritzner which was located in Durlach in Germany. This company was founded in 1872 and produced sewing machines, , and motorbikes. This sewing machine has the serial number 1.379.201 which dates it into the year 1905.
This piece is in a used condition and there are many little damages visible. According to the information you gave us this sewing machine is still functioning.
An estimation would be between 20 to 50 EUR.
This estimation is based on actual recent past recorded auction sales of comparables. Retail "asking prices" can be higher and vary.

With best regards,
Georg