Peter,
Many thanks for this information. John is correct that these DWM 9mmK boxes seem scarce. With well over 100 inputs to the study as previously only had one 9mmK box. That one is identical to your top box but with a date code of inside the flap indicating it was loaded in 1942. If has the DWM logo on the side that was introduced in 1936. It is a shame that your box doesn’t have a code.
Your pink box is an interesting introduction to the study. All previous boxes in Browning calibers since 1934 or so have the red & black boxes of various styles, except for the top 9mmK box you illustrate and a 66 round 7.65mm B box. The address on your box would indicate production from no earlier than 1936, yet the style appears to be that of earlier boxes. On the other hand, we have not recorded a 9mm K box with the red & black style. Perhaps production of 9mmK was so low that they never adopted the red & black box.
Are there markings on the side of the pink box??? if so an image would be apprecdiated.
Please confirm that the top box has side markings shown below.

If anyone has DWM 9mmK boxes from WWII or earlier, please share images.
In fact, any images of DWM boxes from WWII boxes that are not military boxes, would be greatly appreciated.
Cheers,
Lew