I have a TinySA that has unknown type number.? I bought it used from eBay and do not know its age.
There is no such number on the label on the backside of my unit.? The only appearance of "ZeenKo" is the very bottom line on the rear label? that reads "Designed by Erik in Netherlands, Made by ZeenKo in China".? Nothing else below it.
Any thoughts?? (I am getting enormously old and I may just not be seeing the type number...)? ;-)