I'm sure many are still rotting in some warehouses. They also weren't very popular (suit with a tie)among soldiers maybe that's a reason why the
are so rare.
As an example for Austrian Army way of surplus handling:
During my conscript time(2007), we had to sleep in a warehouse near a military training area.
In the warehouse there was a huge stock(around 200) of new unused sealed leather uniforms for MP motorcyclists from the 70ies.
One of us (a biker) asked the sergeant what is going to happen with them because they looked so good.
He said:,,Nothing they are going to be destroyed,,.
One leather jacket costs 200 Euros-used.
I'm sure many M56s were burnt, thrown away, forgotten, tailored into Gendarmerie uniforms or something else.
But maybe in some time, they will recognize that they could make some money with them after 50 years laying around.... :lol