I really appreciate your help in identifying these recently acquired Indian copper coins.
1. round, ~20mm, 8.51g
2. square, 18.3x16.5mm, 11.6g
3. square, 17.9x13.9mm, 10.94g
4. square, 18.9x15.6mm, 10.3g
5. and a pretty impossible one: square, 15.9x15.5mm, 10.43g