Well, the cat's out of the bag now.
The Foundation was inaugurated in 1971 in order to promote Joan Miro's works and to act as a study centre for contemporary artists and researchers. The present building dates from 1975. The architect was Josep Lluis Sert, a friend of Miro, who was heavily into the Bauhaus movement, as can be seen here. Lots of reinforced concrete and plenty of glass.
The kit was published by La Ciutat de Paper, Barcelona, 1984. It's to 1/200 scale, which makes the base roughly 46cm square. I enjoyed making this one even though progress was slow (or perhaps because progress was slow). The parts lined up pretty much as they were supposed to, so no problem there. I liked the nice use of the transparecies supplied. The real bugbear for me was that several parts - the sides of the skylights, for example - were deliberately designed slightly oversize and had to be trimmed down after assembly. I discovered that I wasn't very good at this. Still, you can't have everything your own way, can you?
I'm having much trouble getting pictures to appear here just now, so all I can do at the moment is to direct you to one of my Flickr albums, where the model can be seen in all it's glory
Paper Architecture | Flickr
The Foundation:
https://www.fmirobcn.org/en/