Found the following hamletworks.org entries referring to line 621+1

View Commentary Note for 621+1
621+1 {This heauy headed reueale east and west}1.4.17

View Immaterial Textual Note for 621+1
621+1 {This heauy headed reueale east and west}1.4.17

View Material Textual Note for 621+1
621+1 {This heauy headed reueale east and west}1.4.17

View Material Textual Note for 621+2
621+2 {Makes vs tradust, and taxed of other nations,}1.4.18