Hi Geoff,
The colour green, you have the hat there, so you can judge better, steel-green would be Nordsee, yes, but maybe this is more emerald-green, for Sachsen? Also, with a chinstrap, it looks more like a cap then a Lagermütze. Wim Saris shows Lagermütze more like Schiffchen in his
Headgear of Hitler's Germany vol.3. Early SA hats, all had metal eagles on them. When the silver-wired woven eagles came, the metal eagles got replaced with patches. Can't find any cap with a triangle-eagle up front though, only Lagermützen, so without Schirm and chinstrap, and the triangle on the side not up front. Will post if I find anything more.
Bye,
KR