Deletion of Maxwell's thermodynamic surface

Comment: in my mind, having a concept, person, or work of art on a stamp of a major country denotes |notability ''per se''.  Not just that, but others have |found good sources.  They just need to be added and the article fixed up, for it to be rescued
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG||WP:RS)