Elton Common

Hard to tell without a close look but 2) looks like a gun flint and 4) a genuine meso/neo blade.

1) and 3) are possible scrapers (going by size) but cant see any knapping (the mark on 3 looks like possible plough damage)

1) and 3) look more like cores, but very tiny!

The 2p is modern tho :-)

And its a beautiful example :)