American Uncial & Initial Bold is a phototype adaptation of American Uncial with initials that’s bolder than the original. Shown in VGC’s 1973 catalog, with caps, lowercase, and initials. Adopted by Mecanorma in 1980 under the same name, but without the initials.
Digitizations of this boldened version include American Uncial (Mecanorma Collection by International TypeFounders) and Unziale (SoftMaker, 2012).