I bought it because it was an ancient jeruselum coin but I want to know what type of ancient coin it is
It a bit difficult to give specifics based on your pictures, but it appears to be an ancient bronze coin of Judaea. Depending on the weight, it is either a lepton (plural "lepta"; popularly called "widow's mite") or prutah (plural "prutot"). My guess based on the pictures is lepton. For additional details including whether your coin might be a fake, better images are needed.
SorenCoins, I'm sure somebody will help ya, if the photo is a bit better ... => could you zoom-in a bit so we can see a bit more of your coin? ... oh, and perhaps give us the diameter and/or the coin's weight ... that would be helpful Cheers!!
My scale is bad it doesn't show decimals and it shows that the coin weighs 0 grams but it would actually weigh0. Something
It's a lepton of Alexander Jannaeus, king of Judea from 103 BC to 76 BC. This coin is very likely the "widow's mite" that Jesus references in his parable.
Hmmm, I'm not so sure. If you look at the letters on the reverse I can see BAC in a line, might be a prutah of Herod. It's badly worn but it could be a Hendin 1175.
Hendin has shown in his book, Guide To Biblical Coins, that the prutah and lepton were not absolute denominations vis-a-vis their weights which vary greatly in individual issues. His research suggests, that in Judaea, when coins were struck in the same metal, with the same or very similar designs, they were intended to represent coins of the same denomination. The average weight of the small anchor/star coins (presumably lepta) of Alexander Jannaeus is 0.81 grams, but the weight fluctuates from as light as .20 g to 1.70 g. Hendin also gives an example of three prutot of the year 5 of Nero weighing 1.49, 2.43, and 3.67 grams. The average weight of this issue is 2.27 g.
I'm positive it is prutah of King Herod the Great, Hendin 1175. Mint of Jerusalem, 40-4 BCE. Go to http://www.menorahcoinproject.org/ and check out the HER-11 series and you will most likely find a very close die match.
Way to go askea!!! Prutahs, leptons and 'widow mites'---I always have a problem with them when they aren't already attributed....unless they are uncharacteristically in great detail...and easily compared and identified.