Iron tsuba of six-lobed (mutsu-mokkō-gata) form, with six wild boar's eye shape (inome) openings (sukashi). Hitsu-ana and the entire perimeter of tsuba have typical for this school raised rim. Lobes are decorated with landscape motifs in low relief carving (sukidashi-bori). On the obverse: A hut under a full moon, Shinto shrine gates (torii) with pines and a full moon, rocks, a large pine tree, and a temple (pagoda) surrounded by rocks and waves. On the reverse: waves, fishing boat, wild gees in flight under full moon, maple, hexagon (tortoiseshell, kikko) with a dot inside and a dot outside (inclusion/exclusion symbol), and chrysanthemum (the last two may be family crests, mon). Kamakura-bori school. Late Muromachi period (1514-1573). Height: 64.2 mm, width: 74.3 mm, Thickness at seppa-dai: 3.2 mm, at rim 2.6 mm. Weight: 62.8 g (light). NBTHK old green certificate №561: Tokubetsu Kicho  - "Extraordinary Work". A look-a-like tsuba can be found at the Compton Collection, part II, pp. 14-15, №17, though his tsuba is more massive (80 x 84 x 4 mm). NBTHK paper says that the motif is Hakkei (八景), i.e. "Eight Views," so several interpretations are possible (the original Chinese ones, Omi Hakkei, etc.).  However, most likely it is the 'Eight views of Omi' (近江八景  - 'Omi Hakkei'). Why the artist selected a 6-lobed form for depicting 8 views remains unclear, and thus we are in our right to raise the question whether the motif is indeed Hakkei. The term Omi hakkei (eight views of Omi) refers to painting or print sets which illustrate life on the shores of Lake Biwa in Omi (now Shiga Prefecture). The model for such paintings came from China, where, from the eleventh century onward, painters had produced eight views of the Hsiao and Hsiang lake areas of Hunan Province. The themes, which follow the original Chinese models, are: geese descending to land, returning fishing boats, clearing rain, a snow-covered evening landscape, the autumn moon, night rain, a temple bell at evening, and the glow of sunset. Japanese artists have also used the eight-theme approach for other parts of country - including cities - and applied it to subject matter other than landscapes. [Merrily Baird. Symbols of Japan. Thematic motifs in art and design. Rizzoli international publications, Inc., 2001, page 308-9]. Japan Encyclopedia by Louis Frédéric also mentions Omi Hakkei as "Eight landscapes of Omi", and states that this theme was often cited in poetry after 1500. It is likely that the tsuba in focus is designed under the influence of the theme popularity in the 16th century. The theme was effectively exploited by prominent ukiyo-e artists Suzuki Harunobu and Utagawa Hiroshige in the 18th and 19th century, respectively. These are the eight scenes of the theme (see Wikipedia):

• Returning sails at Yabase (矢橋の帰帆) - Yabase. Yabase is an old harbour on the east side of the lake. Near the Tokaido, it was used for a shortcut to Otsu by boat.
• Evening glow at Seta (勢多（瀬田）の夕照) - The Chinese Bridge at Seta. The long bridge across the Seta was used by the Tokaido. In the background the "Fuji of Omi", the Mikamiyama. It is just above 400 m, but indeed well visible.
• Autumn moon at Ishiyama (石山の秋月) - Ishiyama Temple. The Ishiyamadera was located on a hillside next to the Seta River. It got his name form the strange rocks on which it is built, partly on supporting beams. A hut at the upper end of the site allows a view of the lake, and the moon.
• Clear breeze at Awazu (粟津の晴嵐) - Awazuhara. Awazu is well known for its pine wood, Awazu-ga-hara.
• Evening bell at Miidera (三井晩鐘) - Mii-dera. Miidera temple was built in the 8th century. Its famous bell is one of the "Three bells of Japan", the other two being those at Byoodo-in, Uji and at Jingoji, Kyoto.
• Evening rain at Karasaki (唐崎の夜雨) - Karasaki Shrine. Karasaki is a small cape with a single large pine tree, a hitsu-matsu.
• Wild geese returning home at Katata (堅田の落雁) - Ukimido. Alighting geese cannot be seen always, however the little temple near Katata in the square hōkyō-style, detached from the lakeside, connected by a bridge. The first part of the name uki is the same as in Ukiyo-e, meaning floating. Midō means temple.
• Evening snow at Hira (比良の暮雪) - Hira Mountains. The Hira mountains on the west side of the lake experience the hard winter, when the winter monsoon brings much snow from the continent.

In any case, as a conservative, I say that it is a landscape motif and a late Muromachi period work, rather than Omi hakkei motif and a mid-Muromachi work.

Iron tsuba of round form adorned with the design of stars, wild geese, floating blossoms, leaves and tendrils realized in brass inlay. The inlay technique includes suemon-zōgan and ten-zōgan. Two smaller openings (hitsu-ana) surrounded by a scalloped brass border. The seppa-dai border inlay is missing, as well as a few other fragments of inlay on both sides. Sword cut at 12 o'clock on the reverse. A tsuba with a strong autumnal connotation, which once belonged to a great battle weapon. One of only three known jūyō Ōnin tsuba. Translation of the paper, issued by the Japanese sword fittings (tosogu) examination board: Designated as jūyō-tosogu at the 34^th jūyō-shinsa held on April 14th 1988 Kaki-karimon zōgan-tsuba (花卉雁文象嵌鐔) — Tsuba with zōgan design of flowers and wild geese. Mumei: Onin (応仁) Tokyo. Nakasono Tokumi (中園とくみ) Measurements: height 9.5 cm, width 9.4 cm, thickness at rim 0.35 cm Interpretation: marugata, iron, brass zōgan, two hitsu-ana Time: end of Muromachi Explanation: Ōnin-tsuba are thin iron ita-tsuba which show a brass zōgan ornamentation. All of them are mumei and there is the theory that they were made in the Onin era (1467-1469) although today more and more the theory is accepted that they are in general late Muromachi period works. There are two kinds of brass zōgan interpretations: One depicts irregularly arranged tachibana branches, wild geese, chrysanthemums, flowers, or karakusa for example, and the other one shows punctual zōgan elements, which are referred to as hoshi-zōgan or ro-zōgan, and concentrical zōgan elements between the nakago-ana and the rim. The latter interpretations might also be accompanied by simple ko-sukashi in the form of butterflies, clouds, hats, or stylized mountains. This tsuba is a typical work from the former category. It is large and feels massive and the powerful and impressive zōgan and the excellent iron make it a highly tasteful piece. Back side: Issued to: Nakasono Tokumi Address: Tokyo-to, Suginami-ku, Kamitakaido 2-17-26 Date of issue: May 30^th 1989

Iron tsuba of round form, slightly convex, decorated with persimmon (kaki), simplified Genji-kō (incense game symbol) and halves of plum blossoms (ume) in brass inlay on both sides, and with part of bellflower (kikyo) in openwork. Outer rim, seppa-dai, bellflower openwork, and kozuka-ana outlined with brass inlay; traces of lacquer to surface. The symbolic meaning alludes to Chapter 20: Asagao (朝顔, the bellflower or "morning face") of Tale of Genji by Murasaki Shikibu (11th century AD). The events take place in the 9th lunar month (Nagatsuki) and involve the following poetry by Prince Genji: saku hana ni / utsuru chō na wa / tsutsumedomo / orade sugiuki / kesa no asagao [I would not have it said / that my heart has turned toward / a flower in bloom — / yet how hard it is to pass / without plucking a “morning face”!]. Measurements: H: 76.6 mm; W: 76.3 mm; Th.: 3.6 mm (seppa-dai), 3.0 mm (rim) Time: Late Muromachi (1514 – 1573).