> When it was excavated in the 1950s by Richmond, a large pit was found in the summer of 1960 containing 875,400 complete iron nails (Square shaft) ranging from 50–410 mm (2–16 in) plus another 28 (round shaft nails) weighing 7 tons, together with other iron objects, including cartwheel rims weighing a combined total weight of ten tonnes (Inchtuthil Nails by “Roddy Fraser”). The pit was elaborately concealed, and the nails and ironwork were almost certainly buried by the troops to deny them to the local tribes when they dismantled the fortress before they finally left.
> When it was excavated in the 1950s by Richmond, a large pit was found in the summer of 1960 containing 875,400 complete iron nails (Square shaft) ranging from 50–410 mm (2–16 in) plus another 28 (round shaft nails) weighing 7 tons, together with other iron objects, including cartwheel rims weighing a combined total weight of ten tonnes (Inchtuthil Nails by “Roddy Fraser”). The pit was elaborately concealed, and the nails and ironwork were almost certainly buried by the troops to deny them to the local tribes when they dismantled the fortress before they finally left.