Stamp Collection Germany 1889-1900. Many special colors and variety's on these early german issues. All of the stamps are expertised by one of the BBP ( Bund Philatelister Prufer's). Herr Zenker, Wiegand or Petry ). If you look close on a couple of stamps I showed the back. The BPP signature shows the condition of the stamp and the authenticity. When the signature is all the way to the bottom it means the stamp is in perfect condition. The higher the signature from the bottom the more defects or problems with the condition. This is my personal collection I started around 1992. Sorry the video shakes around a bit. If you hit pause you can see the colors stand out.
