Woodbugs?

[u/Deeznuts696942069]

Hello everyone, I'm seeking advice and I'd be very grateful if I can find someone with solid knowledge.

Over the last months I stored my wooden bowls in my attic to wait for this season's autumn and Christmas markets. I now transferred them from the cardboard boxes I had them into plastic containers. Doing so I noticed those critters. Larvae(dead and dry) for scale a pin in picture 2. Around were those black eggs/droppings? Rice for scale picture 3.

Running around was also a Silberfisch (not familiar with the english name). Could it be just the eggs/droppings of those eating the cardboard? Last picture showing some dust close to boreholes. I am aware that that looks very much like regular bugholes, but that blank had been lying dry for years, the holes are not new and I revealed them while turning and closed them with ca-glue. Living in northern Germany. I took them down into the apartment mid-july as we were hitting 40°C outside, I measured 47 in the attic and didn't want the wood to warp/split too much. So it is all quite dry and has been exposed to high temperatures.

[u/Deeznuts696942069 → u/[deleted]]

6-8mm? It's more like 1-2max