Seeking Date Code on Bilstien Struts

[TEM]

I picked up a pair of Porsche factory installed Bilstein struts but I can't find a date code on them. I usually see the year and month of manufacture just to the left of the Bilstien mark but these don't have any. Does anyone have an idea where I can find it? Pics of one of them. Thanks TEM

[ToySnakePMC]

I’m not an expert, but I seem to recall the mfg date at top of the strut - after you slide the dust shield off. Mine were 2005 perhaps.