Hello. I can't determine the year of manufacture of this box. I would like to draw attention to the fact that at the end there is not &Sk but &Co. Also, the Russian coat of arms is missing. After Poland's independence, they immediately switched from Sk to Co. However, this does not fall under mine because my letters do not stick out like in the photo. Marks site: http://www.ascasonline.org/windowottob101.html