Every other section of this archive treats her as a working object: plating, machinery, battery, corrosion. This one asks a different question. A century after commissioning, what physically survives of a ship like this — and which of those things are load-bearing for anyone who wants to understand her?
The answer is not one thing but four, and they decay at very different rates. The hull is the slowest and the most expensive. The drawings are the most useful and the most fragile. The photographs are the most abundant and the least precise. The skills are the ones nobody thinks to preserve until they are gone.