Transitional, Victorian, Other?

[fernando]

Originally Posted by Hotspur

... In passing, Juan Perez writes "nice sword" and of seeing nothing particularly Spanish about it, and suggests the ducal crowns might point to Germany or Austria...

To be precise, if i dare, this would be, not a ducal coronet (crowns are different) but, one of a less ranked noble. Also the construction facade depicted could be that of a palace and not of a castle ... in theory.
It could be that the reason for all these features, 'strange' mark and all, is one of significant meaning. Why all those are pointing towards the 'wrong' side of the blade; client's imposition ... or the engraver not being professionally sword orientated .