This dataset is a comprehensive diachronic comparison of the Vai script of Liberia, as derived from sixteen sources dated between 1834 and 2005. It can be viewed as a webpage at https://ftp.shh.mpg.de/kelly/Vai.html.
A sortable docx version can also be downloaded from figshare.
Please note that a subset of these graphemes have been traced as svg vector images. You can download them here: https://doi.org/10.6084/m9.figshare.5897158.v1
The same graphemes with a black background can be found here: https://doi.org/10.6084/m9.figshare.5901337.v1