@Soy_Magnus @Hoss @hakui

Worth it to also invest in elements other than Ag, Au, Pt, & Pd. You don't even have to invest in the metals themselves. Just get jars of the oxides for most of them. Even with Ag, Au, Pt, & Pd you can get simple compounds or solutions of them so that they aren't readily identifiable and less likely to be stolen or even searched for.

Beyond bullion, don't forget the other two of the "3 B's": Bullets and Booze. Stock up on ammo and quality alcohol, both of which will be far more useful than gold or silver after the collapse of civilization.