Why is it an unknown?
1) It is a seedling, and therefore not the same as anything else? In that case, give it a name.
2) Did it ever have a name? Many figs were brought by immigrants a hundred years ago and more, and may or not have had a name back then. Usually those names, if they existed, are lost. If they came from Italy, it is probably the same as 50 other figs, that came from a different town,, with a different name, but were really the same variety. Calling it "Italian Unknown" doesn't help much becasue there are hundreds of "Italian Unknowns".
So give it a temporary name, such as Narragansett 3941 or some such, which clearly identifies it, gives some clue to it's location or origin and which will not be confused with any other unknown or with any name for a known variety.
I had4 unknowns which originated from Portland, so Portland 1, Portland 2, etc. As I figure out what they are, they can get real names, or if they seem unique enough, a new name, so Portland 1 has become Portland Rose. Keeps continuity with the original name, is more descriptive, and will not be confused with any other fig name.
Same with Samoa Sunshine. It was probably a seedling, though maybe not, so Samoa relates to the street where is is found, and Sunshine relates to the color.
Maryland Brown Turkey eventually became Maryland Berry. It wasn't a BT, but did originate in Maryland, and has a nice berry flavor. Again, will not be confused with anything else.
I have started picking names for the numbered selections at USDA/UC Davis because I am tired of explaining the numbers. So 143-36 became Emerald Strawberry, reflecting the light bluish-green skin, and red center.
[edit|] Raspberry Latte was a seedling that grew up under my coffee tree, So originally it was called "Coffee". Later, when it fruited, and had a nice raspberry taste, it became Raspberry Latte reflecting its color, flavor, and origin. [end]
And I add all the new names to Figs 4 Fun, so that there is full disclosure and everyone knows what the story is.
This season I figured out that Portland 3 is the same as Green Italian, so now I have two unknowns that are the same. i now suspect that they are both White Marseilles, but not ready to stake the claim, yet.
Hope that helps.