Is the EKI with double marked 20 and L/52 a little bit rare?

[DKig]

Hi All,
as the title said, Zimmermann double marked EKI is just a bit rare in EKI family? Was this kind of Zemmermann's production made in early/middle war or later war, or throughout off the war? Why the company stamp double marks?

thanks

[evilmike]

Its certainly not rare, seen some forsale today, i have one and iam sure many EK1 collectors have too

[fabri-online]

Hello
they seems uncommon to me, sometimes they appear are on sale as Mike sayd. I think they comes from the middle period.

[evilmike]

what would be interesting would to know if it was for instance, one big batch of EK1's that were double stamped or whether they were done over a longer period as and when it was required.