Large Panelled Pine Coffer Early 1800s

Condition is pretty good structurally: it's solid enough though I don't recommend using it as a seat; it'd likely be ok but would be wise to add more supporting struts under the lid. Some delicate areas to the panels here and there, and one corner where it's been filled with cork I think (see pics). The main issue, both structurally and cosmetically, is the very obvious signs of old woodworm over the years. It's not live now: this piece has been in my family for many years but there were no signs of frass (dust etc) underneath and it was regularly treated and inspected. But while the look of it is quite attractive; very authentically ancient, there has been some damage, mostly to the back left corner of the lid (pictured). It's a piece that needs treating a little delicately but is by no means falling apart: many years of useful life left in it.