I would say this piece dates from 1933 or early 1934. Earlier kepis would have a matching tan top instead of the Gruppe color. Later in 1934, the kepi would likely have the model 1934 national emblem, which was much larger and very short lived.
LIFE'S LOSERS NEVER LEARN FROM THE ERROR OF THEIR WAYS.
Thank you, your response was very helpful.
The early pattern eagle was worn and in use until orders from June 28, 1937. Indeed in January 1934 a new pattern eagle came into being, but this form of eagle was merely an eagle to be worn by political leaders. Within the SA it was hardly worn!!
The number 511 is from a smaller concern: A2/511 = Georg Dodt from Koblenz am Rhein. They lost their RZM-permission with the date October 31, 1939. From then on they were not allowed to make headgear for political organizations. And as so often the color for the district matches close-by the location from the manufacturer. But remind: this was no rule!
"Wir sollen auch unser Leben für die Brüder lassen" (1.Joh.3.16):
zum Gedächtnis Wilhelm Schenk. Er starb fürs Vaterland am 13. Juni 1916
Thank you for your response.