Reported directly to devteam, the starting inventory for rogue chars
specified that their lock pick be +9, but the 'spe' enchantment field
is meaningless for that type of item. A followup report indicated that
it had been this way since at least the 3.0 era.
It might have been a typo, since 9 and 0 are next to each other. Or
perhaps before lock picks were introduced, rogues started with a
skeleton key. That assumes spe==9 meant skeleton key back in the days
when each key and lock had a designated shape and a non-skeleton key
had to match the lock's shape to work. I don't know whether that was
how skeleton keys were flagged and don't care eough to delve deeper....