In march - june 1926 captain Botved flew Copenhagen - Tokyo - Copenhagen via British East Indies in a C.V.
Source: page 6 of
https://rclibrary.co.uk/files_titles/2188/Profile_087_Fokker_CV.pdf
There is a story of the flight, too (see link underneath with a picture of cpt Botved with either of the planes, I'd say similar to the ac on the OP picture). To make it short: there were two planes named R1 and R2 with two pilots (cpt A.P Botved in R1 and lt. H. Herschend in R2). In the picture is R1 apparently with cpt Botved.
- left Klövermarken airport in Copenhagen 16th March 1926
- reached Calcutta March 28th.
- Left Calcutta for Rangoon 3rd April.
- R2 force landed 45km from Rangoon
- R1 continued to Bangkok April 4th
- April 10th to Hanoi
- Arrival to Tokyo June 1st.
- Cpt Botved left Tokyo June 15th and headed to Copenhagen via Siberia and Russia, Arriving in Copenhagen on 23rd June.
http://www.fipaero.org/exhibiting/co...12/May2012.pdf
I'd reckon your picture is from this trip, definately somewhere in between 16th March (Copenhagen) and 28th March (Calcutta) 1926, most likely in between 20th and 27th March, someone in the know might be able to estimate the transition times more accurately.