Found the following hamletworks.org entries referring to line 1438-9

View Commentary Note for 1438-9
1438-9 Ham. My Lord I haue newes to tel you: | when Rossius {was} an Actor 
1439 in Rome.2.2.391

View Material Textual Note for 1438-9
1438-9 Ham. My Lord I haue newes to tel you: | when Rossius {was} an Actor 
1439 in Rome.2.2.391