Links:
[1] https://www.plymouthyarn.com/sites/default/files/Encore%20Worsted%20Projects-2%20ball%20baby%20sweater%20F168.pdf
[2] https://www.plymouthyarn.com/pattern-type/sweaters-babies
[3] https://www.plymouthyarn.com/collection/plymouth-brand
[4] https://www.plymouthyarn.com/free-patterns/yes
[5] https://www.plymouthyarn.com/pattern-errata/no