SRIKSHETRA: silver-washed AE unit (8.10g), probably late 6th century, Mahlo-13.6, bhadrapitha, 5 lamps above // srivatsa, celestial symbols above, world-pillar (yupa) inside, with 4 stupas either side, vajra (thunderbolt) left, sankh right, decent example with just a light touch of oxidation, VF, RR. The silver-washed copper pieces may be contemporary counterfeits, but it is also quite possible that they were officially issued during a financial or military crisis. They are very rare, and almost never found in decent quality.
Estimate: 120-160 USD