I'm offering these for swap, for other medieval coins if possible. All from the Caliphate of Córdoba.
First two are from Abd al-Rahman III, 929-961
Third is from al-Hakam II, 961-976
Last is from Hisham II, 976–1008.
The coins are fragments because back then they cut them up to make change due to lack of lower denominations. For some reason they didn't get in the habit of cutting them up neatly in halves and quarters and so on, so the merchants used scales to weigh the pieces and be sure it's all okay!