This little guy is unique and rare.

I only found one similar to this one with the same label but with wheels. Suspecting the hair is natural fibers, feels very realistic to course Scottie hair. Also Merrythought has created toys of mohair.

According to my research Merrythought  began creating stuffed toys in late 1930. During World War II, the factory was used for map-making, and the soft toy makers produced other items needed for the war. Production of stuffed toys resumed in 1946. And based on the tag styles from the Teddy Bear Museum, I can conclude that Merrythought produced this Scottie dog after 1945 due to the style of the label.