Metal Detecting - Unidentified finds

This hook was found on an old occupation site, the last buildings being burnt down in 1852. It measures some 6 and a half inches long by 2 and a half across the hook. The socket hole for the handle is only three quarters of an inch across, with a hole for a securing pin for the handle, with the whole length of the hook being square in section - obviously not a tool for heavy work.

This object reminds us of a plumb bob - a weight used to gauge an exact vertical line, usually in building. Snag is, it was found up in the arable fields on top of Bell Hill, with no nearby occupations, excepting a Romano-British settlement some quarter of a mile to the south. It measures 2 and a half inches inches long by 1 inch diameter at it's widest. Though very corroded, there are no signs of any markings or holes. Maybe it's the just the top of an ornate railing or bedpost, though it appears complete in it's own right.

Farm Machine, Shrapnel or meteorite?

The second time out with our detector we came across this object, and identification still eludes us! This metal lump appears to be almost pure nickel, judged as best we can by density, general lack of corrosion and colour of the slightly corroded areas. Two sides, however, appear to have undergone some other more 'energetic' process than weathering, as they are stained black, with traces of 'rust' at the very edges, which is odd, as the object has no magnetic properties at all (not attracted by a magnetic, no effect on a compass). A broken piece of farm machinery has been suggested? Nickel is not commonly used in farm machines due to it's expense, and there are no obviously man made surfaces - all are fractured facets. Shrapnel again is unlikely to be nickel, particularly given the dimensions of the lump, and no connection exists between the area it was found and any military or wartime activity (I guess Belchalwell wasn't a primary target really!). Which leads us to the last meteorite theory. However, the lack of iron content is puzzling, as nickel bearing meteors are usually largely of iron content, with the nickel as a lesser component. So again, if anyone has any thoughts, we would love to know