I've had this for a long time now, I bought it like this with the rank slide on. It seems to have been used but not sure if this kit was ever issued kit? The rank slide is made from M90 material too which I've never seen before.
Sorry to say, but I think the shirt is commercial: http://www.surplus.se/component/page,shop.product_details/flypage,shop.flypage/product_id,8646/category_id,153/manufacturer_id,0/option,com_virtuemart/Itemid,26/
On the webpage they call the producer "A.L.E." - I assume that must be "Active Life Equipment".
"Tillverkad i Kina för Active Life Equipment " means "Produced in China for Active Life Equipment"