Hi,
there is no hard and fast rule as to what kind of Doc a man would get. There was a plan to award "official" docs at a later date, but this was canned in 1918... so....
Depending on the unit you can have a Besitzzeugnis, an Ausweis or half a dozen other formulations.
Some units just entered them in the pass book for the first year or so, then started issuing docs, some units started with big impressive docs from day one. Sometimes the division gave out the doc, sometimes the regiment, sometimes the battalion....
This has people believing that anyone could award an EK. In reality proposals were sent up to the Division, The Commanding General would approve and send the list back.... and depending on the division would either send the docs with the approval list, or more commonly delegate it down to Regimental level as far as issuing docs went.
There was no official guidline as to what doc should be issued. They can range from hand written, to fancy multi coulered, depending on where the unit was and how much the commander wanted to spend.
Best
Chris