 The Sealyham was once one of the more popular terriers , with over 2 @,@ 000 puppies registered in the UK during the 1920s , and one of the best known Welsh breeds . Today , however , the Kennel Club ( UK ) lists the Sealyham as amongst the most endangered native breeds . In 2008 , registrations of new puppies with the Kennel Club dropped to an all time low of 43 , placing it among the bottom three on the list of Vulnerable Native Breeds . In October 2011 , British magazine Country Life highlighted the breed on its front cover , with the heading " SOS : Save our Sealyhams " , and launched a campaign to save the breed . End of year figures for 2011 showed that 49 puppies were registered with the Kennel Club in the UK , keeping them within the bottom three on the list of most endangered breeds . 
