We had a spill of rain on Christmas Day and there was a bit of damage to the lane . . . although the water gave the drain a good flush through - removing the soggy sycamore [Acer pseudoplatanus] leaves that I should have swept up in the fall. There are some things that are best done with machinery, if available; but some a best done with hand-tools. Clearing drains is better with a slash-hook and shovel because even the 30cm bucket of a digger will do damage by ripping out stably embedded rocks and allowing more severe erosion next flood-time.which demolished the house we live in 81 years ago on 2nd Jan 1941. So, provisionally, we have another fragment of that tragic jigsaw.
I'm not going actively looking for more because it is hard to properly establish provenance without the help of an archaeologist or a forensic metallurgist and their equipment. And don't mention metal detectors - there are buckets [literally buckets in at least two cases] of miscellaneous iron-mongery thrun in the ditches across the property.