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or express route in this State, except that preference may be given to perishable property. No undue or unreasonable discrimination shall be made in charges or facilities for transportation of freight or passengers of the same class, by any railroad, or transportation, or express company, between persons or places within this State; but excursion or commutation tickets may be issued and sold at special rates, provided such rates are the same to all persons. No railroad, or transportation, or express company shall be allowed to charge, collect, or receive, under penalties which the legislature shall prescribe, any greater charge or toll for the transportation of freight or passengers, to any
