The Devil's Due revealed *Spoilers*

[Angron]

Waht do you get for handing in the pristine deathclaw egg you found in the Museum of Witchcraft? the answer is here.

[Angron]

so a guard said something and I automatically started a side quest to visit the Museum of Witchcraft south of Salum... Salom?!.. It led me to a team of slain gunners who had made off with death claw eggs. upon picking up the last pristine egg a quest starts ( the Devil's due) you now have a choice... finnish the delivery ( take the egg to wellingham in Diamond city) or take the egg back to it's nest... I couldn't find any answer on steam so I found out myself just for you ^^

A) take the egg beck to the nest. this gives you the "Deathclaw Gauntlet" An upgradeable unique malee wepon.

B) Finnish the delivery. Will give you Wellingham's Deathclaw egg recipe and upto 500 caps.