[rx]

It probably was taken by a professional and therefore there would have been few situations and groups of people who could have afforded the expense that would have been involved in the late 20s. The Scherffs, Mengele, Skorzeny and Bormann hobnobbed with the top of German leadership, however. They no doubt could afford a bit of color photography.

Here are another couple of 20s era color photographs for comparison:

 

Then, here's 20+ color photographs from about 1928, all in much better quality than that one of the Family Scherff, some 45 years ahead of your "feel."

[numberonepal]

The dude with the t-shirt is what made me think it wasn’t professional truth be told.

[numberonepal]

The "feel" I was getting was from this kind of camera: