Reference for Shabbat 104:18

הא תרגמא אביי אליבא דרבא בגלמי:

too was referring to men's [rings]. And are all men's [rings] alike? Surely it was taught: A ring made to gird one's loins therewith or to fasten [the clothes about] the shoulders is clean, and only a finger [ring] was declared to be unclean! — He too was referring to finger rings. And are all finger rings alike? Surely we learnt: If the ring is of metal and its signet is of coral,<span class="x" onmousemove="('comment',' Probably a species of cedar-tree. ');">¹⁷</span>

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