Found the following hamletworks.org entries referring to line 503

View Commentary Note for 503
503 Too oft before {their} <the> buttons be disclos'd,1.3.40

View Immaterial Textual Note for 503
503 Too oft before {their} <the> buttons be disclos'd,1.3.40

View Material Textual Note for 503
503 Too oft before {their} <the> buttons be disclos'd,1.3.40