The project is till online if anyone is interested:
sebastian-bn-zaydan.github.io/Benin-Proven...

Today I noticed my Benin Bronzes Provenance page had some broken image links to MFA artifacts. Apparently the MFA returned five loaned objects to the son of Robert Lehman (the original donor), instead of repatriating them to their place of origin.
blooloop.com/museum/news/...

#artifactrepatriation

If still relevant, perhaps the following interactive map of stolen Benin bronzes currently on display might be of use:

sebastian-bn-zaydan.github.io/Benin-Proven...

If you really want to help, there is linked google form to add artefacts to this list