Dagger Probably Masonic 19th Century

This dagger dates from the 19th century, and its strange appearance could well evoke the Masonic tradition. Indeed the quillons of the guard and the pommel have the shape of 3 circles in a triangle, which make a "Venn diagram": 3 circles that interpenetrate.
The number 3 being omnipresent in Masonic symbolism, I will not talk about it.
It should be noted that at the level of the pommel the central circle is larger than the 2 lateral ones.
The intersection of the 3 circles is empty, since "the secret of Masonry is that there is no secret" ... The blade is also 3-sided.
We can see  the grip as the representation of 2 superimposed columns.
BLADE: it is 3-sided, with a triangular section in a hollow pan.
Length = 25.2 cm, width near the guard = 1.8 cm, thickness near the guard 11 mm
GUARD: it is made of iron, with 2 quillons which have the shape of intersecting circles whose intersection is empty.
POMMEL: it takes the shape of the 3 intersecting circles with the larger middle circle.
GRIP: it is made of wood and represents 2 superimposed twisted columns.
The object is nice, uncleaned, unrestored, the symbolism seems interesting and should not leave the collector who acquires it indifferent.
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Ref 4Y-2460