An enchanted childhood in Weissensee

An enchanted childhood in Weissensee

The small lake that gives Weißensee its name, and the bigger park around it, were just a short walk from the Ringel residence on Woelckpromenade. I was there myself in 2018 and can picture the place this picture was made in about 1928.

That is Helga on the right with her two friends and a doll in a pram. The friends are Ingried and another whose name I can't make out on the flip side notation. Would you say Helga is about three or four in the picture?