You are most welcome - and here is some more info.
Even more recent use of the MicroDuromat 4000E:
Journal of Nuclear Materials (Elsevier)
Volume 479, October 2016, Pages 447-454
Journal of Nuclear Materialshttps://doi.org/10.1016/j.jnucmat.2016.07.015
Title: Microhardness and Young's modulus of high burn-up UO2 fuel
F. Cappia a, b, D. Pizzocri a, c, M. Marchetti a, d, A. Schubert a, P. Van Uffelen a, L. Luzzi c,
D. Papaioannou a, R. Macian-Juan, V.V. Rondinella, *
a European Commission, Joint Research Centre, Institute for Transuranium Elements, P.O. Box 2340, 76125, Karlsruhe, Germany
b Technische Universit€at München, Faculty of Mechanical Engineering, Department of Nuclear Engineering, D-85748, Garching bei München, Germany
c Politecnico di Milano, Department of Energy, Nuclear Engineering Division, 20156, Milano, Italy
d Universite Montpellier 2, Institut d’Electronique du Sud UMR CNRS 5214, 34095, Montpellier, France
For mail - Rondinella. of Montpellier.
It seems that the instrument was marketed by Vickers
(?). Incidentally, I looked up the Wikipedia, Vickers Hardness Test, and indeed, the apparatus in the picture there (unknown model) includes a microscope!