I think i have found the family crest (in two versions attached).
There are actually more than two possible crests. As I understand it, the crest belongs not to the family but to the clan to which the family belonged (which may or may not be related by blood).. So depending on which clan your Jucewicz family belonged to they might have used any of the crests pictured in the link below. Unlike England, there was no Heraldic office/authority responsible for issuing arms, recording the crests and controlling the appearance of heraldry, therefore families often adapted clan crests to slightly alter their appearance and customize them for their own family, so that makes it even more complicated!
So to know which crest your family used, you'd need to know to which clan they belonged.