I love these old machines. Here the sturdy cast iron Royal Typewriter. They work nearly forever and give your fingers a little workout as you use it. I myself have an old Royal that I got off eBay used by this guy's mom then put into a garage forever. Its the kind with a glass panel on each side. Need to clean everything up just like you did.
Then I had a Sears Kenmore lawnmower once that was magnesium and clearly forged by a nifty fifty or its variant.