The motif of the Kyo-Sukashi tsuba in the bove url link contains
1) bat
2) money
3) the sukashi kanji longevity.
The bat symbolizes happiness, as bat in Chinese pronounced 'fu' (蝠), the same sound as 'happiness' (福).
So, the overall motif of the tsuba reads 幸福と富貴と長命 or こうふくとふうきとちょうめい in Japanese, or 福祿壽 in Chinese.
You can see the caved out / sukashi longevity motif is in the shape of the one in the opening post.