I bought a G.H. Pumacker Black Diamond, but have also seen a Grah Plumacher Black Diamond (like the one pictured below that belongs to effx). Is the Plumacher/Pumacker just a coincidental difference in merchandiser and Black Diamond the manufacturer? Or is it the same company with a difference in spelling? Any other information would be nice.

My Pumacker:





And effx's Plumacher: