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Coins, bits, fishing sinkers and half a ring from beach last week in NZ. We have new 10, 20 and 50 cent cupro nickle coins which just degrade and rust in the sea salt or even the soil. The bad ones I just put between a cloth and a few whacks with a hammer to get the crud off, either rotary tumble with malt vinegar and salt or if Im feeling vicious.....into a container of CLR (calcium, lime and rust remover), then a container of water, finaly container of baking soda and water. Banks here will only accept coins that are recognizable.....no matter the colour, as in rotary tumbling I plonk the 10c cupro copper with "silver" 20 and 50's and they all come out a pretty pink! Only advantage of cupro nickle is they are magnetic.......using a 120kg pull neodymium is interesting fun !!!!!! However, what the photo does say is they were deep and bèen in the sand a long time.....and that is from a beach which is constantly detected by others.

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Good finds and it does look as if some of them were quite deep.

What was the average depth of those coins?

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On 2/9/2020 at 4:24 PM, 2Valen said:

Good finds and it does look as if some of them were quite deep.

What was the average depth of those coins?

Hi, unfortunately I didn't measure those at the time, but can say yes....some were deep. I guesstimate from 1 scoop to 3 scoops to get some out. Here is a photo of my scoop which WAS 12 inches, but now worn to 11.5 inches after 10 years or so.

 

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IMG_09022020_175804_(800_x_600_pixel).jpg

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