Well, it snowed and snowed and snowed this weekend. Then suddenly it warmed up and has been raining since, so the snow is much reduced as I type this.
And *ding ding ding* we have a winner! Larissa was right on to this past week's mystery object. It is a sled runner. My information tells me that it is whale bone and has been broken since at least 1998.
This sled runner is one of the many objects I've been rehousing to prepare for the move. This is how the runner is being stored.
The pieces are tied with cotton twill to a piece of cardboard lined with foam. The board has handled to facilitate lifting. This board fits into a large drawer. When it comes time to move, the empty space in the drawer with be filled with quilt batting (separated from the object by a layer of tyvek or tissue paper) and the drawers can be stacked. In this way, the objects won't shift and move around when they're loaded into a vehicle. And the materials used in the tray are such that the sled runner can stay on the tray for a long time without suffering negatively.