The Tankonijn or Tan is a popular variety in the Netherlands but also abroad. The variety is 
      England is also processed and created. Around the year 1887 was the English Mr Cox from 
      Brailsford person that race in his initial appearance for the first time 
      seen. On a afgerasterd land he had several Hollanders, Little Silver and rasloze 
      blue-gray rabbits running. Between those animals was him at a given moment by animals 
      color and pattern. The back (dekleur) was black and the belly color was cream / yellow.

Probably the color slightly compared with the color we get 
      otter call today. The color battle otter is often seen as the oervorm of the 
      Tanpatroon and zilvervospatroon. The tan are the red factors y1, y2, y3, etc. 
      added and the broad band factor (W-wide) and the zilvervos the chinchilla factor the 
      cause of the tarnish of the cartridge parts.

The new variety was Black and Tan said, because the black deck and Tankleurige 
      pattern parts. Tan is an English word for share or run, which is a substance that is made from 
      oak bark and is used for skin tanning.

The English breeders Purnell from Cheltenham has used hybrids to the yellow belly color 
      strengthening. This has probably the Belgian Haas used. The type was considered 
      also higher, but longer. This was the Cheltenhamtype.

National Black and Tan Club was founded in 1890 at the Brailsford type 
      preferred. The members of the Cheltenhamtype were united in the British Black and 
      Tan Club. Ultimately, the first club eliminated.

The Tan was in 1900 for the first time exhibited. The establishment of the Dutch Tanclub 
      until August 1, 1920. 
  
---------------------------------------------------------------------------------------------------------------------------------------------- 
                                                                                                           source: E. Doorn