Help with Iron Cross

[streptile]

"KO" is an unknown maker, still the most common.

So interesting to me that this common maker is unknown.

[Steve Campbell]

So interesting to me that this common maker is unknown.

Same with KAG. Another very common maker that is unknown. How many EK1s and EK2s did these two makers produce between them, and yet it is unknown who they are. Incredible.

[streptile]

KAG is unknown, too? Fascinating.