Perhaps I have not been clear enough!
We are told that Jesus is a sin offering, not a guilt offering.
By the logic of this, Jesus should be the Bull of God or the Goat of God, although lesser offerings were made if the plaintive was poor i.e. doves, pigeons or even flour. Since Bulls were offered for the sins of Israel, I would assume that Jesus would be identified with the Bull.
For Guilt offerings a ram or lamb was offered, but guilt offerings, as far as I can see, were only offered for transgressions involving restitution, where damage was done or something was stolen. In any event, if Jesus was a guilt offering, he would be the Ram of God not the lamb of God.