Which preposition to use with vetturino

by Occurrences 1%

As the vetturini invariably make a halt of an hour and half or two hours at mid-day in some town or village, this halt enables you to take your déjeuner à la fourchette, which you pay for yourself, unless you stipulate for the payment of that also with the vetturino by paying something more, say one a half franc per diem for that.

Which preposition to use with  vetturino