Verbandkasten with dark paint painted over dunkelgelb?

[Vesqu]

I recently got myself this Verbandkasten in Dunkelgelb color. The sides and the bottom of the box are painted with a dark brown color though? Do any of you have any ideas on why this could be? This Verbandkasten has a really nice look to it in my opinion, and I'm not sure if I should try and remove the later on added paint. Especially since I don't know its origin! Thank you already, looking forward to what ideas you have!

[CBH]

Looks like post war over paint to me , someone stripped the top paint to reveal the cross and make it more salable . Nice box , Id consider stripping the rest of the paint Carefully . Also if you wax the top with a conservators wax , it should bring back some of the original color . IMHO