http://dishmodels.ru/wshow.htm?p=2489
I thank a lot Andrej Alekseev aka Kamchatka, to have shared it and Dishmodels site to have posted
As you can notice the exemplar has starfish wheels...

I wonder if it is due to a museum restauration or if it were possible that some operative exemplars could carry that kind of wheels
Cheers and thanks for any reply about