Teemer and Spools traditionally produced archive proof sheets, some of which would be made available to collectors. However, additional internal printer`s proof sheets would be produced, usually A5 sized (or the Discworld equivalent), showing the stamps within a rather ornate setting.

One such internal sheet showed the Klatchian Offler stamp in a block of four. This one has a certificate of authenticity on the reverse signed by the artist.

There were other proof sheets for Klatch, one archive sheet, and the others were printer`s proofs produced during the later stages of the the stamps production process. From the text on some, you can see that they are required for tentative final approval purposes. The are quite similar but vary in colours and small details. These will be of interest to the more ardent collectors.

        
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