Nitro,
The stamps are from the German Republic, circa 1919-1922. Look at SC 107,108,105,106,155,153,154. You also have airmails C1, C2
The third row are posthorns and miners from the same era. You need to check watemarks for the SC number. The last row has Bavarian overprints, 257,261,260,259,256,258,262,263,265.
From a value standpoint they are pretty common issues. Also, there are a lot of CTOs during this period.
Hope this points you in the right direction.
Dan
