I'm not sure if this is the same as Michurinska 10. Actualy there are many trees with almost the same fruits but with slight variation. For exsample: the fruit and taste are the same, but they spoil much easier. Some are with a little larger eye and are attacked by bugs, and some look the same but taste is litle different. Ofcourse all these diffrences might be due to soil, water or other factors.