Late 17thC Scottish Broadsword.

[urbanspaceman]

An exemplary description of the dates and wolves Jim (as usual).
I have a Hounslow Hangar with a latten version of that wolf and it is - as you point out - reversed.
The inscription is ANNO 1553 and for a long time I was frustrated in finding a connection between a 1630s sword-blade and an event in 1553 (which was the tragic 9 day reign of 16 year old Queen Anne before being executed).
Your suggestion that the numbers were probably talismanic hit the mark.
I agree, this broadsword blade was probably Hounslow made and re-hilted during the Jacobite rebellions with the numbers added then.
There is much contention regarding the importing of Solingen blades into the Hounslow industry versus the use of the Passau Wolf by those Germans working there and I don't think we will ever reach a satisfactory decision.
Fantastic restoration work Norman.
BTW
There is an adhesive that will effectively cold-weld your bits together Norman: it is sold in auto accessories shops. I have found it quite remarkable.