Hi Jasper,
My experienced friend says that the form of the quillons, with their pronouncedly swamped terminals - and obviously terminating in an additional tiny bulbous finial - is a characteristic feature dating that dagger into the late 15th to early 16th c. when rondel pommels were still in use.
The length of only 34 cm indicates that it may have been either a lady's dagger or stored under garments like a cloak.
Best,
m
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