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If the above is correct and the surface of the coin did dissolve at an equal rate the stress lines? would not become visible, because the metal above the stress lines is flat and the erosion would simply eat through the thickness and the lines around the rim would not appear, I cant see a reason why acid would treat metal differently. Who knows about chemistry and can explain why acid would dissolve metal faster with different characteristics in the underlying metal?

Im not saying it is or isnt an acid bath coin but assuming the acid disolves all exposed metal surfaces at an equal rate the relative distance between the high spots and the low spots remains the same, maybe the coin shrinks proportionally making a thin version of itself before the details flaten out.

I think this is standard for the hobby, Rob

Worse still, looking back, it appears I also posted the Truro and B a year ago too. I claim mitiga...... Actually, I had just started to dig into, photograph and update the collection database which hasn't seen anything new for the past 12 months despite a few dozen acquisitions since then. Must do better.

Makes my wobble at a 7hr round trip to Heaton Norris pale into insignificance

Well spotted Mr G. Maybe my kids weren't so silly to suggest I sign up for the Biobank Alzheimers Accelerator Project after all. TBH, I'm not sure it needs to happen quicker anyway, but hey-ho. I had completely forgotten about that, but claim mitigating circumstances as I had just driven to the other end of the country through the night to look after the grandkids in Plymouth due to a family bereavement on the other side and not bothered going to bed afterwards. Hopefully get some sleep tonight when I can switch off.

Nice find, Clive…in our own archive t’boot! 🙌🙏

There have been several of the same style posted here:

You could very well be right, I’m open to any suggestions on this one…I really don’t know, truth be told! 🙂

I'm pretty confident these are both modern replicas. Yours, Stuart, looks like someone 'aged' it to try and pass it off as genuine (vs just contemporary).

Thank you. I just weighed it don’t know why I didn’t think of that before. It wouldn’t be a convincing fake as weighs 5.62g. So assuming it’s a newer reproduction from a museum shop or something. Other coins in the heap seem fine. But not interesting.

It’s meant to represent a groat, by the way.

Contemporary with the times, I’d say, as in intended to be spent. I’m basing the above solely on the fact my own example looks like it has been in the ground for some years. However, that’s not to say someone didn’t beat my piece up to make it look like an old coin? This has been known, but I suspect it would not have been worth it to beat any modern copy up this much, in the hope of making a few quid? Value? I wouldn’t have expected to get more than a tenner for my coin when it sold, so I likely didn’t even get that much. People do collect genuine (😊) counterfeits, so you may get lucky on eBay, but don’t expect too much.

Thank you! Contemporary as in with the real coin? someone had dumped the contents of their car ashtray/ other rubbish out of their window and brother was cleaning it up.

Sorted then. Well done. Those who don't like keeping reference books/records, please note.

I felt like I recognised it from something I had around 20 years ago, so been digging around my images. Here’s one I used to have, which was pewter (or not silver at least). They are identical and, given the similarity of ‘strike,’ and the fact mine looks like a genuine field-find, I’d say they were both contemporary cast counterfeits (cast, rather than hammered from dies).

Maybe, I don't know. That's why I said perhas someone else has the books to check for references and values. I see few Scottish coins apart from the early pennies, or the much more common milled bits.

That’s a super-crude counterfeit, surely? Would a Scottish coin have English titles on it, I can’t say that I’d know?

It looks Scottish, but my books are at home and I'm not, so someone else has to chip in with a reference number/value.

Yes, sorry I didn't realise that was posted. I had to transfer to desktop to reduce the photo file size, so it should be there soon.Both phoos were too big

A picture tells a thousand words. Image limit size is 500k per post, so if exceeded, leave the thread and rejoin with the next 500k.

Thank you to everyone who helped with the Queen Anne coin back in July. I have found some more coins in my brother’s things. Google tells me this one is Queen Mary. It is 2.5 cm diameter. Any information much appreciated. He found it in a rubbish pile about 20 years ago, along with what look like Dutch coins and old pennies, and a really worn heavy bronze coin.