This attractive record bag (both sides are the same) is from the German Bertelsmann label, and adorned 45 rpm singles issued by the label in the late 1950s into the early 1960s. As with many other European countries, most German singles came in dedicated picture sleeves but not all. The single here (some sort of MOR marching band) seems to date from 1958 so I suspect the sleeve is also from that time, but information is not easy to come by and Bertelsmann had several different designs in the early days. This is the only one I’ve seen to feature a photograph however, with teenagers in a mock up of a soft drinks bar, some dancing, others reclining in metal framed canvas butterfly chairs (I remember my dad having one of these in the Fifties!). I can see an early Nina and Frederik album or ten inch from 1957 amongst several unknown records scattered on the floor.
Bertelsmann Schallplattenring (“record circle”) wasn’t a proper label, they were part of the Bertelsmann Book Club organization, and you could only buy the releases via mail-order or in their book shops. Especially in the 50s and 60s they were massive, with millions of registered members in Germany and Austria who all received a big quarterly catalog to order from. In the second half of the 1960s they released their own compilations of Elvis, Beatles and Stones tracks (the most famous probably the weird album »Beatles – The World’s Best« on their SRI sub-label).
Thanks for this extra information. Simon