1950 | Desktop manual perpetual calendar | Chaoyang Monozukaku

1950 | Desktop manual perpetual calendar Year: 1950 Material: metal, leather, paper Origin: France https://live.staticflickr.com/65535/53868524036_25db83c64c_c_d.jpg The advancement and changes of the industrial revolution have greatly increased the demand for various office supplies. Due to the emphasis on time control, there was a desktop perpetual calendar that could be manually adjusted for long-term use, solving the inconvenience of annual replacement of traditional calendars in the office environment at that time. The four gears of the perpetual calendar, the two outer ones are used to adjust the date, and the inner two are used to adjust the day and month. The appearance shows a golden Bronze luster and is paired with a black base. It combines practicality and beauty. It is placed in the study room. , office or living room, it can add an embellishment to the environment.