Modern German Covers

Hello Everyone,

I got these three covers sent by local goverment, postally canceles but without obvious receiving party or Post Office.

Can anyone shed some light on purpose and postal marks of these covers.

Thanks

Those with prefix "F" are FRANCOTYP-POSTALIA franking machines and the one with "E" is PITNEY BOWES

Thanks Jorgesurci,
Its just that I cannot reckognise any receiving post office marks, nor is there any form of address of the receiving individual or institution.

These all are covers with a window. The letters will have had the recipient's printed such that when folded and inserted, it would have sat behind the window.

The first cover has a correct inland rate for standard letters up to 20 grammes.
The second cover was sent on the second day of the new rate for for standard letters up to 20 grammes. It increased from DM 1.00 to DM 1.10 on 1 September 1997.
The final cover has a franking for the compact letters over 20 grammes and up to 50 grammes.

These all look like ordinary mailings to inhabitants of Germany. They could be tax forms, and one looks likes it contained papers relating to refugees or immigrants settling in Germany.

All quite ordinary covers. Local authorities, most likely, used meter marks on their post. These would have been applied using franking machines at the offices of the local authorities. Once or twice a day, postbags were collected by the postman and sorted for delivery.

Receiving marks were ancient history in the 1990s. There is no reason to expect those. And as they were franked with dated meter marks, no cancellation was required.

Thanks NSK.

I knew I was missing out on something obvious, but now you pointed out the obvious fact that there is a window, I feel rather brainless.
I receive such envelopes everyday.
Thanks.