Any info: Idrottsbladets Bildgalleri Olympic Cards

[Bosoxcards]

Hi,
I came across several cards(photos) of olympic athletes. The look like they come from a Swedish company, Idrottsbladets Bildgalleri. Does anyone have any info on this set?
Here is a sampling of the cards.
Any help would be great
Thanks

[Michael B]

Here is a list of the track athletes in the set. Based on athletes this is from the 1930's.

Amerika A.11* Herman Brix shot put
U.S.A.A. 10* Tom Churchill decathlon
? Glenn Cunningham middle distance
Tyskland A.3* Paul de Bruyn marathon
Amerika A.3* Ben Eastman 400 m
England A.2* Thomas Hamspon middle distance
Tyskland A.2* Emil Hirschfeld shot put
Amerika A.4* Paul Jessup discus
Forenta Staterna A.15* Jack Keller/George Saling/ hurdles (110 m)
Percy Beard
Japan A.3* Chuhei Nambu long jump, triple jump
Finland A.4* Paavo Nurmi middle/long distance
Osterrike A.1* Felix Rinner sprints, 400 m
Amerika A.3* Gene Venzke middle distance
Argentina A.1* Juan Zabala marathon

Here is a link to an auction in Sweden where a large group of them sold.

https://auctionet.com/sv/1715675-idr...images#image_3

[Bosoxcards]

Appreciate the information!