Metal Versailles Orangerie Boxes Spotted - Summer 2022

I've lusted after the green Versailles Orangerie planter boxes that you see all over Paris filled with trees in gardens and parks.  I've posted about them a couple of times here on the blog and even thought about trying to make one on my own.  While were were trouncing around Paris this Summer, we certainly saw the original ones with upright wood slats.  But, I also was tuned into a new version: made from metal.  

Here, below, is one of them I saw on a side street in Paris.  It has a scrubby tree/shrub in it, but feels fairly underplanted.

And, below, are pair of them (unplanted as well) in the park leading to the Eiffel Tower.   

A closer look inside these shows they are two-piece containers with an interior 'cage' that seems it can be 'lifted out' (see the corner hooks below).  I'm guessing that two-piece setup is intended for Winter as they can leave the planter in place, but take the tree to the Orangerie for overwintering.  The other thing (see below) is that they seem to be using some sort of grow bag on the inside of the cage.  Wonder if that's standard issue?  

I remain in love with the original slatted version, but it is kind of neat to see these updated, metal versions have been refreshed for use around Paris.