This is a typical Belgian concrete fence in 1:87. You can find these all over Belgium near railroad stations or other NMBS places. There were different models but this is the one from around 1960-1970 I believe.
I did measure this up myself in Muizen (near to Mechelen)
The pole is open on both sides, and you can slide the fence in it. You can consider merging some fences together to make it easier to print and handle.
Keeping pole and fence seperated removes the need for supports.
Designed for Prusa Mk3s+ with 0.25 nozzle !
The author marked this model as their own original creation.