1876-A German 5 Mark with a weird edge

[Generic Lad]

I've been going through my previously purchased coins during lockdown, and I found a very curious 1876-A German 5 Mark. The edge of it looks to have been milled and then edge lettering added to it. I do not have another 1876-A 5 mark to compare with, but my 1876-B 5 mark (and a few later mints of the same type) all show a plain edge with lettering. The weight on it seems to be a bit low (but I'll freely admit my scale was cheap) weighing at 27.5 grams when my reference is showing 27.77 grams (my 1876-B weighs 27.6 grams on the same scale). The diameters between the 2 coins seem to match

Does anyone know what this can be? Wrong planchet error? Something else? Is this a known variety that anyone is aware of? (I neither speak German nor have any English-language German coin references)

 

[Paddy]

I can't claim any expertise here, and I had never looked that closely at mine, but it does have a plain edge with incised writing, as shown.

The only other comment is that yours seems to had a thicker, and possibly irregular rim? Whether that is part of the same mint blunder or poor fakery, I don't know.

[Rob]

Looks like someone has been messing about.

[azda]

Kaiser Wilhelm died in 1888, there was a coin/medal produced shortly after with a milled edge, at a guess this is what it’s trying to impersonate, but the date of death would also be on it. My book lists a Hess-Divo auction 27-10-2005 lot 416 if you want to check it out.

[Generic Lad]

Thanks!