There isn't one.
Made in Germany by Hermann Weihrauch company. Here is a link to their website: http://www.hermann-weihrauch-revolver.de/
You must contact the maker.
Weihrauch, which was a German company specialising in high quality airguns and subcalibre firearms. Their approach with the Arminius line of pistols was a bit different, however.
The Arminius HW38 was mostly likely manufactured by Weihrauch, a German firearms company known for producing the Arminius line of revolvers. However, the exact manufacturer may vary depending on the specific model and time period it was produced.
Jacobus Arminius died in 1609.
SMS Arminius ended in 1875.
Arminius Hotel was created in 1904.
If it is in good condition and still fires, in today's market you would be offered about $100 to $150. Unfortunately, Arminius' aren't worth much. If it were mine, I would hold on to it for the simple fact that it is a working firearm. You won't get very much on a trade in or selling value with Arminius firearms.
Not very high dollar firearms, but not junk either. Basic, utility grade handguns. They DID make some very nice target rifles at one time.
Jacobus Arminius was born on 1560-10-10.
SMS Arminius was created on 1865-04-22.
No, they do not.