With many thanks to the kindness of blog reader Henrik (of Denmark), here is a box of Penol Twin 2011 double ended colour pencils.
Henrik tells me that Penol woodcase pencils are a brand revival. Penol seems to have done some regrouping, and are introducing older product lines, though these products are no longer made in Denmark.
The set has 18 pencils. They are hexagonal and factory sharpened. There is no statement of origin, though the packaging has text in Danish, Swedish, Norwegian, and Finnish.
All in all, a lot of fun!
See also: Double ended colour pencils. (pencil talk, October, 2009)