Join Date: Mar 2006
Location: CSA Consulate, Rm. 101, Glos. UK: p.s. - Real Dogs Have Feathering.
found the below online, looks like the disassembled grip has a correct pommel nut with the tubular extension and hemispherical termination unlike the hex acorn nuts used by the modern cheap repros.
be careful reassembling it, the threads look stripped and may be a bit fragile and also may need the attention of a good restorer.