Oh very sweet 🙂 you she’s ( or he 🙂 ) is a tuxedo cat 🙂
She may also be a Manx mix breed.. In not sure where you located but from what I know in America the Manx breed /mix breed aren’t unusual to find in rescues .. It isn’t a common thing to find a possible Manx mix but she could be one..
If she is keep a very close eye on her toilet habits.. Some Manx cats have issues with producing stool .. It’s common for kittens to only produce a stool sample once every 2-3 days some go even longer as their system is adjusting to KRM. You can help things move along if your worried by adding goats milk to her diet or adding a few drops of veg oil if she appears constipated..
As she gets older the fact that she is missing her tail could effect the frequency of stool production so just be aware o that and there’s no harm in adding a few drops of veg oil every other day to food it will help everything move along..
Also Wet food is always recommended for cats with possible constipation issues and I always add extra water to the wet food as hydration is the best way to reduce the risks of constipation ..