Sorry, no strange tracer production and no fancy female air squadron in here.
The tracer round M.1908/40 shown by Chickenthief was introduced to replace the two different former ones:
M.1908/33 - not for aircraft use
M.1908/34 - for aircraft use
So the M.1908/40 was intended for air and land service. The Danish Air Corps was part of the Army at that time and so there is no different marking or designation ( * ). Impossible to say which unit should end up using the cartridges if it’s not stated on or with the package in any way (haven’t seen such yet).
(*) - Navy is a different story.
About the production 1941/1942: Denmark was occupied on 9th April 1940 but kept it’s sovereignty (more or less … rather less, but that was the official status) and authorities, including (again: more or less) intact Armed Forces. The exception among the German occupied countries! This status did not change until 29th August 1943, when a State of Emergency was imposed by the Germans and the Danish Armed Forces were disbanded in the course of this. But until then, the production of material and ammunition continued (almost) normally. Against this historical background, a Danish production for its Armed Forces needs in this timeframe is common and nothing strange or special - despite the occupation.
About the cardboard boxes: Of what I know, this box-style came to Denmark with the 8x58R Maxim cartridges in 1917 (haven’t seen an older box of this style of true Danish origin yet) and was then taken on there. Made, used & re-used for factory loads, for repacks, for the Armed Forces, for the shooters club, for different cartridges … until the 1950ies.
@Fede: Can you show a picture of 6.5x55 in this particular boxes? (maybe better to open a new thread on this topic)
Especially for 6.5mm I’m only aware of Danish boxes with upper/lower part to open up the large flat side, not the narrow side like the boxes shown above.
@PetedeCoux: Please apology your thread goes this way, but I couldn’t resist to add some facts (omitting as many details as possible). You show us a great crate! Thanks for that.