The Ubanu'hi (infinity symbol) is a kind of guilloche or interlaced strapwork motif that can be angular or rounded. It was used by Edo artists in the decoration of many Emwin Arhe (royal treasures) and is ubiquitous in Benin royal arts. Ubanu'hi is a shortened form of “uba no Ọba ya de agbon ke ehimwin yi”, which means “the rope with which the Ọba ties the heaven and earth together” (pers. comm. Chief John Igbineweka Inneh n’Igbesawman, 2022). Similarly, Paula Ben-Amos Girshick (in Plankensteiner 2007, pp. 339, 341) described this as “Ọba n’iri agbon”, or the “rope of the world” pattern.

According to Ọbabanmu Ineh (in Blackmun 1984, p. 51), the use of this motif indicates that objects were carved by members of the Igbesanmwan. However, the motif is found on all types of Emwin Arhe (royal treasures), not only those made of ivory or wood. On the flanges of the Ama (relief plaques) alone, Kathryn Gunsch (2018, pp. 75–77) identified three different versions of the Ubanu'hi and, through her analysis of over 850 plaques, found that these different Ubanu'hi forms align with other characteristics, such as dimensions, the prevalence of ornamental motifs, and stylistic qualities. Together, these provide evidence, she argues, of different production groups among the plaque makers .

Kate Ezra (1992, pp. 209, 264) went on to argue that the use of these motifs indicates that certain objects were used in a “royal context” and were associated with “royal patronage”.

The Ẹkpẹn (leopard) is an animal that appears most often among the motifs decorating the Emwin Arhe (royal treasures). The Ẹkpẹn symbolises the valour and strength of the Ọba, as well as his political authority. The Benin people eulogise the Ọba as the ‘ẹkpẹn n'owa’ (leopard of the home).

When a hunter kills a leopard, he must say “ẹkpẹn n'oha” (I killed a bush leopard), as it is taboo to say that a hunter killed a leopard without specifying that it is a bush leopard, as otherwise this would “be tantamount to symbolically killing the king” (Nevadomsky 1988, p. 81). For this reason, leopards of the bush are called Atalakpa to distinguish them from those that represent the Ọba.

Ẹbẹn are a type of ceremonial sword of significant importance in the Benin Kingdom. During ceremonies, titled chiefs would hold them or toss them during dances, thereby paying homage to the Ọba at these public events, particularly when a chief receives a certain status. It is forbidden for Ẹbẹn to touch the ground, so the chief must take extra precautions to avoid dropping the Ẹbẹn during the dance. Therefore, the Okae-Odionmwan (head of executioners) dances with the Umozo (warfare or executioner’s sword) behind the dancing chief.

There are two central ceremonial swords used in the royal court of the Benin Kingdom, one of which is the Ẹbẹn, along with the Ada (ceremonial swords). They are distinguished by their blades: the Ẹbẹn blade reflects the shape of a leaf or an oar. Sometimes, it is decorated with openwork designs and/or brass inlays, most commonly shaped as small Ẹbẹn and Ẹkpẹn (leopards). The handle of the Ẹbẹn also has an unusual ring-shaped form, which further differentiates it from the Ada.

Odigba (coral-beaded collar) is a rigid neck collar made of coral beads, worn as part of ceremonial attire only by senior princes who have been made Enigie (Inneh 2007, p. 107). Although Ibafe (2007, p. 43) argued that the Odigba was introduced during the Ogiso period (c. 900–c. 1170 AD) by Ogiso Ere, along with other symbolically important Emwin Arhe, such as the Ada (ceremonial sword) and the Ẹbẹn (ceremonial sword), this seems unlikely, as coral was only introduced in the late 15th century through trade with Portuguese merchants.

Ikoro (armcuffs) are made from different materials using different techniques, including brass sheet, cast bronze, and ivory. They were crafted by different guilds depending on the material used: artists of the Igun-Ẹrọnmwọn cast them in brass or hammered and incised them from brass sheet, whereas artists of the Igbesamwan carved ivory Ikoro. Ikoro were made in different qualities, from rather simple examples with abstract geometric decoration to finely carved ivory examples with brass or copper inlays. Ikoro are worn in pairs on both forearms by chiefs and the Ọba during ceremonies and festivals. Figures depicted on the Emwin Arhe (royal treasures) are often shown wearing such pairs.

Akọn Ẹkpẹn are necklaces or neck ornaments made of strung leopard’s teeth. They are worn by figures to signify their high rank and military prowess, as well as by their leaders, the Ezọmọ or Iyasẹ. They are often worn alongside quadrangular Ẹroro (bells) and Ohian Ẹkpẹn (leopard tunics).

The Akọn Ẹkpẹn is clearly and profoundly related to the symbolism of the Ẹkpẹn (leopard) and its association with the Ọba (king), who is metaphorically referred to as ‘ẹkpẹn ne owa’, the ‘leopard of the home’. On the other hand, the Ẹkpẹn is often referred to as the ‘king of the bush’, embodying ferocity, aggression, strength, and leadership—qualities attributed to the Ọba (Nevadomsky 1988). This intricate link between the leopard, the monarch, and his military leaders reinforces the complex hierarchy and spiritual authority central to Benin’s courtly art.

Ukpan obọ ọkpa is a single baldric worn diagonally across the torso, from the left shoulder to the right hip. Barbara Blackmun described these baldrics as an “Ẹkpẹn band,” worn by figures as “a sign of distinction” ( ).