Hi Baz,
details below for you, the US marked box is a British made and used box, that has had something else stored in it at a later date,
Regards Gary
P59 Used for:
25-pr. Q.F. gun Shell, H.E. (4x off)
or Grenades No. 68 (17x off)
or Bomb, hand incendiary 1 1/4-lb (24x off)
M104 Used for:
Rockets "U" Ammunition Shell "U" 3-in. H.E. No. 1 (4x off)
or Fuzes N0213 Mk2 (12x off)
C206 Used for:
25-pr. Q.F. gun Cartridges Normal (cordite) (8x off)
or 25-pr. Q.F. gun Cartridges Normal (N.C.T.) (8x off)