Hi Jones,
If I had to guess I would say this is probably 100% natural Dunlop although of course guessing can be dangerous. if it is then this would be a very good quality and durable mattress which is two sided (which would improve durability even more) and has a wool quilted cover which is very good for temperature regulation. There would be no weak links in the mattress but of course it’s “value” would depend on what else was available to you and your personal value equation.
I don’t know who their latex supplier would be.
Phoenix