Dragomir Dragomirov, judging by the date - 1921. Judging by the signature - Albert is written with a solid mark. Yes, and Pavlovsk, too. Spelling Reform 1917-18. reversed this rule. There was not any point in Alberta to sign his name after 3 years after the reform with a solid mark in the end. Those who signed this piece could have this rule and do not know ...
The rest think for yourself ...