According to wikipedia it is not first reconstruction of "viola organista’’.
"Akio Obuchi built several instruments as early as 1993.[1] In 2004, a modern reconstruction of the viola organista by Akio Obuchi was used in a concert in Genoa, Italy . In 2013, Sławomir Zubrzycki constructed and performed on his own viola organista[2] at the Academy of Music in Kraków."