The Unkillable Lanz Bulldog: https://heinkelscooter.blogspot.com/2021/11/the-unkillable-lanz-bulldog.html
Lanz Bulldog HR 5 Operating Instructions: https://heinkelscooter.blogspot.com/2021/10/lanz-bulldog-hr-5-operating-manual.html
Lanz Bulldog HR II Parts list: https://heinkelscooter.blogspot.com/2021/11/lanz-bulldog-hr-ii-bilingual-parts-list.html
1957 Bulldog operating instructions for Model H: https://heinkelscooter.blogspot.com/2023/06/1957-lanz-bulldog-operating_5.html
