Bag made of paper material for archiving articles, which comprises: - a first sheet-like element and a second sheet-like element, superimposed and delimiting between them a containment volume of said bag intended to contain articles to be archived; each of said first and second sheet-like elements (103,104) being provided with: - at least three constrained margins, superimposed and fixed to the corresponding three constrained margins of the opposite sheet-like element (104, 103), - at least one access margin superimposed on the corresponding access margin of the opposite sheet-like element (104, 103), and such access margins delimit between them an access opening to said containment volume; - a closure flap, projectingly extended from the access margin of said first sheet-like element, and such closure flap is susceptible of being folded at least in partial superimposition on said second sheet-like element in order to close said access opening to said containment volume; said closure flap being provided with a first portion, comprising a first adhesive strip for a first closure of said bag, and a second portion, comprising a second adhesive strip for a second closure of said bag; wherein: - said closure flap comprises a tear tape, which is arranged between said first portion and said second portion and is susceptible of being torn from said closure flap in order to separate said first portion from said second portion; - said first portion is extended between a first free end of said closure flap and said tear tape; - said second portion is extended between said tear tape and the access margin of said first sheet-like element; said bag being characterized in that: - said bag is provided with a removable flap projectingly extended from the access margin of said second sheet-like element between a second free end and a weakening line, which is obtained at said access margin and is susceptible of being torn in order to remove said removable flap from said second sheet-like element. - a first sheet-like element and a second sheet-like element, superimposed and delimiting between them a containment volume of said bag intended to contain articles to be archived; each of said first and second sheet-like elements (103,104) being provided with: - at least three constrained margins, superimposed and fixed to the corresponding three constrained margins of the opposite sheet-like element (104, 103), - at least one access margin superimposed on the corresponding access margin of the opposite sheet-like element (104, 103), and such access margins delimit between them an access opening to said containment volume; - at least three constrained margins, superimposed and fixed to the corresponding three constrained margins of the opposite sheet-like element (104, 103), - at least one access margin superimposed on the corresponding access margin of the opposite sheet-like element (104, 103), and such access margins delimit between them an access opening to said containment volume; - a closure flap, projectingly extended from the access margin of said first sheet-like element, and such closure flap is susceptible of being folded at least in partial superimposition on said second sheet-like element in order to close said access opening to said containment volume; said closure flap being provided with a first portion, comprising a first adhesive strip for a first closure of said bag, and a second portion, comprising a second adhesive strip for a second closure of said bag; - said closure flap comprises a tear tape, which is arranged between said first portion and said second portion and is susceptible of being torn from said closure flap in order to separate said first portion from said second portion; - said first portion is extended between a first free end of said closure flap and said tear tape; - said second portion is extended between said tear tape and the access margin of said first sheet-like element; - said bag is provided with a removable flap projectingly extended from the access margin of said second sheet-like element between a second free end and a weakening line, which is obtained at said access margin and is susceptible of being torn in order to remove said removable flap from said second sheet-like element.