loaded button near the  catch is pressed; twenty rounds of .25 calibre ammunition for the  folding AR7 sniper rifle are stored in two tubes camouflaged as  metal rivets and released by twisting the ends of the fake rivets;  the cases spine has a secret compartment which contains two leather  straps of 25 gold sovereigns apiece which are behind the poppers in  the lid; a nitroglycerin tear