This requires you to play the Henry's Rock job on any difficulty.
This also requires the job to have the Archaeology lab to be open as the first two rooms in Henry's Rock. If not, restart.
Complete the room as normal as part of the job, opening the books and putting in the combination to get the box artifact from the golden crate.
Once you have retrieved the box artifact from the golden crate, you will have noticed that the panels on the side of the crate will be able to be pressed.
Press the sides in this SPECIFIC order (multiple names of the side will be given to their description to reduce ambiguity):
1. PYRAMID/ILLUMINATI
2. OUROBOROUS/SNAKE/CIRCLE
3. RHOMBUS/DIAMOND/KITE
This will reveal the crates' "secret" and the achievement will unlock.