Wine archeology: 1921 Mouton Rothschild?

1921 Château Mouton Rothschild?;

Note on the bottle states 1921 Mouton Rothschild, second Grand Cru. Label badly damaged, half a castle barely visible, resembling that on Lynch Bages label on top of label, and below MOU N ROTHS LD barely readable and Rothschild arrows show in bottom left corner (see pic 3). Mid shoulder fill, nothing stated or visible on old and soaked cork. Rubyish colour with orange rim. Pencil, cedar and whiff of leather, anis with some fine Earl Grey tea notes. Fresh acidity, thin body and palate, but the acidity carries it like a nerve holding it together, hollow, lean and short finish. 80

Deffinitely an old Médoc, and likely to be Pauillac, maybe even Mouton. Vintage was not or barelly visible initially, but after extremmely carefull cleaning of the label, 19 and space and then 1 can be seen if not clearly, it's visible. (Se pictures one and two) In the 2 space there are spots of colour in places that would be natural for a number two. All the three different hand vritten notes on the bottle states 1921, with one of them also stating Mähler-Besse. Bottle is likely to be hand blown as there is lots of air bubbles and its not even surface. No signs of two halves glued together.