I would be grateful for some help with the error of an E over an R in DEF in the 1817 half crown please. I understand there are a few errors in the 1817 half crown but I cannot find any reference for this one it appears in the two specimens I have found to be a triple error E/E but also E/R. THe E over R in DEI is recognised on the obverse I have three specimens I have collected but I would be interested if anyone collects GIII half crowns if they could let me know your thoughts...many thanks