Funny that you are looking for these figures.....
Like you I was looking only a couple of weeks back !!!!
What I found was an old web page with this on it :
Dear Friends, I´d like to introduce myself. My name is Gabriel Martínez and I am the owner of GM Miniatures, a new line of 60 mm metal collectible figures made in Buenos Aires, Argentina. My figures are fully compatible with those in the same scale from other manufacturers. The first figures of my line are soldiers from the Napoleonic Wars, specifically from the Prussian and Belgium armies, enemies of Napoleon. I am expanding production according to clients’ requests and market trends.
This is the site:
http://gm-miniatures.blogspot.com/
The reason I was looking for it was that i was given 4 Napoleonic figures from this company. They had survived a house fire hence that colouring here:
View attachment 262903
I did a repaint and now they look like this:
View attachment 262904
They are 3 x Prussians and a Belgian all from the Battle of Waterloo.
Nice figures???
I hope this helps,
John