Some 303 cartridges

[303tom]

I had these for a long time and could use some help to identify the last two cartridges with the colored bullets (I knew what they were but since forgot)

The first is the Mark 11 C and the second is 1916 - it is the last two I need to I DAttachment 56389Attachment 56390

Headstamps of the .303 British Calibre Service Ammunition Round