While the technologies to do some of those things may have been available I wonder how many of those things the instrument makers of the time actually knew mattered, and to what extent did they understand it?
Temperature and humidity are very obvious and important if your doing woodworking so I would assume that quickly become common knowledge. But, it would be interesting to research it.
Though I think it's important to remember it was a high tech process for the time. At the time few things required that level of precision or complexity. And considering the size and physical effort involved few things have that kind of volume.
