Inspired in turn by the Mars Lumochroms at Lexikaliker, here’s my (unintentionally Italian-style) offering. The amazing thing about these pencils is that they didn’t come from eBay or Etsy or anywhere like that – I found them in a store, the same one where I got my Chung Hwa pencils. They were there the whole time. The yellow one says “DRP. Germany” while the others have just “Germany” written on them; I wonder if one is older than the other?
Trying them out (I sharpened the red; the green and yellow remain factory-sharpened), I do see that they are harder and more solid than other colored pencils. They write very sharply and keep their edge very well.