Old Hungarian Number One (U+10CFA) is a Unicode other number from the Old Hungarian block. It resides on Plane 1 (SMP, Supplementary Multilingual Plane), has bidirectional class R (right-to-left), is not mirrored, and has combining class 0 (Not Reordered). In HTML it can be written as 𐳺 or 𐳺. Because it is outside the Basic Multilingual Plane, proper font support is required; otherwise a fallback box may be shown.