German chisels are somewhat rarer in north America than their Swedish cousins. But they do exist. Sometimes the hardest thing is finding information about the company that manufactured them. Take for example, the set of 8 HOPPE chisels I bought a while back. They were not expensive ($50?), and the steel seems quite good.
There are two markings, as shown below. The first identifies the brand as HOPPE on the top of the blade, the second (on the back) that it is manufactured in Germany. It turns out they were made in Germany for the Hoppe company, Ontario Canada. The company was started by Otto Hoppe who emigrated from Germany after WW2. The company sources tools from Germany, US, and Canada and had them branded with Hoppe. The chisels are marked “Germany”, which could mean a number of things – the chisels were made (i) pre-WW2; (ii) in the period 1945-1949; or (iii) in the post-division period, i.e. after 1949 (here goods were marked “Made in West Germany”, to differentiate them from East Germany – but it wasn’t compulsory).
Similar chisels were also sold by Sears under the Fulton brand – in the 1922 catalog they are described as “leather tipped bevel edge socket firmer chisels”. There was one tool company in Germany with a similar name, Hoppe & Tesche from Cronenberg (1909-1972). It appears they made saws.
The chisels are socket chisels, 9½-10″ in length with a ratio of steel:handle of of 2:1, i.e. their handles are very small, and as shown in the photo below, tends to fit completely into my hand.
The ends of the chisels are capped in leather.
There is a good resource on European chisels, Alte Beitel (now defunct, but you can still access it on archive.org).