There is an order dated 1.1.1942 telling units not to place any new orders for the SRD CT due to the impending introduction of a special sleeve patch. This was described as being circular (Armscheibe) with the design being a Bann eagle and SS runes. However, an order from the 10th of June 1942 states that the introduction of this patch had been delayed for an indefinite period and that units were to continue to wear and order the old SRD CT. I can't see any further mention of this patch so I'm guessing that it probably wasn't introduced. Does anyone have any more info on that?
If I get a bit of time I'll have a go too.