The pedigree has a history.
Hans’s original site connects his dogs with Czech working and Border Patrol lines, including z Pohranicni straze. The archive keeps the names and photographs of earlier studs, the breeding records and the individual dog pages together.
A pedigree gives context. It should be considered alongside the individual dog’s temperament, training and intended role. Hans’s Q&A describes a broad range of temperaments within Czech working lines.


Names in the original stud records.
The original collection includes Dargo Ha-Ja-Da, Chuligan z Pohranicni straze, Norbo Ben-Ju and Illo von der Abfuhr, among other dogs. These are breeding-history records, not a current availability list.
Understanding a survey card.
Hans’s breed-survey reference explains that Czech survey cards use letters and numbers to describe a dog. The archive preserves the Czech and Slovak reference sheets. Ask Hans to explain the actual documents supplied with the dog you are considering.