Cool find! Hope it is determined as truly Hacksilber. Nice. I do have one, and has a good provenance... Israelite AR 2 Gerah Hacksilber ca 8-6 C BCE 8.8x10mm 1.12g ex David Hendin R
You're lucky! I found my best metal detecting find just the other day, it was an iron horseshoe or muleshoe in my yard! Just learned what hacksilver is. Thanks for sharing, I learned something!