Hello and welcome!
Here you have the english manual: https://docs.google.com/viewer?url=https%3A%2F%2Fsites.google.com%2Fsite%2Fvolvotp21sugga%2FTP21manualexcerptsENGLISHrotated.pdf%3Fattredirects%3D0%26d%3D1
As for the volvo emblem, check out www.tradera.com (swedish e-bay) where you can search for "volvo emblem".
I do belive some of the volvo-produced farm tracktors had the same emblem, such as volvo T24, T25, T31, T33, T35.
Good luck