I think his comma is suppose to be a period, since they put $350,00 and not $350,000 Still an outrageous price for a harshly cleaned WL.
Actually he has it listed at $350.00; just another seller mixing up his commas and periods (which is a pet peeve of mine).
Many other countries use a comma instead of a decimal point to denote the division between the main denomination and the fractional portion. This person may have lived overseas at one time.
Damn that thing was cleaned really bad. And it was a mix up. Some other countries use commas instead of periods.