Неопознанное судно - тип Тарту

This is not a page for any specific vessel.
Below are the photos of different vessels of the same design, which had not been identified (at least, by the name) when uploading.
If you have information about any vessel on these photos, please leave a comment under it.

Design:	1849 (ВНР), тип Тарту
Builder:	Hartmann József Hajó- és Gépgyár (III.)
Registry:	РСССР

561	Московский Университет · Auxiliaries, Sevastopol Miscellaneous — Unidentified ships — СССР — Черноморско-Азовский бассейн Чёрное море Краснодарский край, Сочи Фото из собрания Лемачко Б.В. about 1975 Received from Никита Прохоров