stampcrow,
The booklet panes (Markenheftchen, or MH) were printed in large sheets (Markenheftchenbogen, or MHB), which were then cut down to pane size. However, the MHB were also available for purchase as uncut sheets to serve the collecting market. The stamps you have were cut from MHB.
Here is a complete MHB 2.

And the pair you have, which Michel catalogs as KZ 4.2.1. (catalog value about €12 MNH, €7 MH)

Here is MHB 43, from which your second example was cut.

Michel doesn't catalog the block of four, but a pair is listed as KZ 26. (catalog value about €7 MNH, €4.20 MH)
