O.k., I'll play.
There's a bunch I'm not showing because I just don't have time before Christmas to root around my barn and pull stuff out for pics. For what it's worth, there's Romanian, Turkish and Communist era Yugoslavian 8mm Mauser, Soviet era Polish LB, Bulgarian HB and Yugoslavian 7.62X54R, CMP .30-06 and 70s-80s Greek produced British .303, and several different types of wartime British .303.
The first group shows 1972 dated French 7.5 MAS ammo on stripper clips, 1936 dated Polish 8mm Mauser (I could KILL whoever wrote on that box...), 1939 dated Belgian 7.65mm ammo in separate boxes, one for rifles/carbines and the other for MGs. The only difference is that the former are on stripper clips while the latter is packed loose. Note the labelling in both French (for the Walloon part of the population) and Dutch (for the Flemish part). The last box contains the short-lived 7.35mm rounds for Italian Carcano rifles and carbines.
The next set shows both a pre- and post-Anschluss box of 8X56R cartridges for Mannlicher rifles and carbines. Note the different symbols used on the left side of the labels. The Austrian national eagle is used on the box before incorporation into the Nazi Reich, while the Reichsadler on the other box is used after. The stripper clips are similarly marked.
The other box is pretty exceptional and contains 8mm Lebel rounds for Greece's many French small arms they used before focusing on foreign contract-supplied Mannlicher-Schonauer and Mauser Model 1930 rifles.
The next pic shows German produced 9X19mm and 8mm Mauser rounds. The 9mm rounds are late production (1944), note the use of lacquered steel cases. The 8mm Mauser ammo was made in 1938 and looks like it was made last week. Pre- and wartime German boxes were marked in excruciating detail, down to propellant and primer types, among other things. The cardboard box is a 'battle pack' of 300 8mm Mauser rounds in 15 round boxes.
The next several pics show German wartime produced rounds in 6.5X53R Dutch Mannlicher. The two types are on stripper clips ('Für Gewehr') and loose ('Für MG'). The purple tips on the clipped rounds are purpose made dummy/practice rounds using reloaded cases. These were made at the FN factory in occupied Belgium and supplied the training needs of second- and third-line German troops that used captured Dutch small arms. A contact of mine in Holland does WWII military archaeology there and recently published a site report from a small Luftwaffe radar installation that had it's own range. His team recovered some of these same types of rounds at the site.
The crate you see has been around quite a bit. It started life as a German type 88 (not Flak 88) ammo crate, as shown on the end. It was used to pack the above described training rounds, as shown on the label on the inside of the lid. It was recovered by the post-war Dutch military and used to pack ammo for their KNIL colonial troops in Indonesia. It was later surplussed and shipped to a surplus dealer in Los Angeles, CA.
The last one is a 1940 crate of 8mm Mauser ammo from the pre-war Kingdom of Yugoslavia. This ammo was domestically produced and the 15 round boxes are sealed with the royal cipher of King Petar II.