Extremely Rare 14th to 18th Century Igniting Irons and a 16th Century Linstock

[Andi]

P. Sixl has published in his article Entwicklung und Gebrauch der Handfeuerwafen in Zeitschrift für historische Waffenkunde vol 1.8, 1897, page 201 the image below showing a gonner firing a cannon with a hot iron (Loseisen) and holding soething like a pan (Glutpfanne?) in his left hand. The illustration is obviously redrawn after an original said to be from the manuscript Cod. 3069 of the Austrian National Library in Vienna from 1411 Online.
After checking each page of the codex I was not able to find the depicted drawing and I guess the cietated manuscript is not the correct one and the image must be from an other codex.

The image and its source is very interesting for me as I guess the pan in his left hand contains glowing charcoal for heating up the hot iron hook.

Has anybody an idea from which codex this image is originally?


Edit: "Online" Link changed to a working one.