Nb 18:15-16 (King James)

¹⁵ Every thing that openeth the matrix in all flesh, which they bring unto the LORD, whether it be of men or beasts, shall be thine: nevertheless the firstborn of man shalt thou surely redeem, and the firstling of unclean beasts shalt thou redeem. ¹⁶ And those that are to be redeemed from a month old shalt thou redeem, according to thine estimation, for the money of five shekels, after the shekel of the sanctuary, which is twenty gerahs.

Nb 18:15-16 (Vulgate)

   ¹⁵ Quidquid primum erumpit e vulva cunctæ carnis, quam offerunt Domino, sive ex hominibus, sive de pecoribus fuerit, tui juris erit : ita dumtaxat ut pro hominis primogenito pretium accipias, et omne animal quod immundum est redimi facias,
   ¹⁶ cujus redemptio erit post unum mensem, siclis argenti quinque, pondere sanctuarii. Siclus viginti obolos habet.