Found the following hamletworks.org entries referring to line 428

View Commentary Note for 427
427 Ham. What look't he frowningly?1.2.231

View Commentary Note for 428
428 Hora. A countenance more in sorrow then in anger.1.2.232

View Immaterial Textual Note for 428
428 Hora. A countenance more in sorrow then in anger.1.2.232

View Material Textual Note for 428
428 Hora. A countenance more in sorrow then in anger.1.2.232