[ULPIANUS libro uicensimo ad edictum. ] §45.1.60.prIdem erit et si Capuae certum olei pondo dari quis stipulatus sit: nam eius temporis fit aestimatio, cum peti potest: peti autem potest, quo primum in locum perueniri potuit.
[ULPIAN, on the Edict, book 20] The same will hold even if someone has stipulated for a certain weight of olive oil to be delivered at Capua; for the valuation is made as of that time when it can be demanded; and it can be demanded at the time when it was first possible to arrive at that place.