17th-century Dutch master’s Vision of Zacharias in the Temple to go on display this week

It hung unrecognised on the wall of a private home for decades but now a 17th-century painting has been revealed as a Rembrandt, taking its potential value from thousands to millions of pounds.

The Rijksmuseum in Amsterdam announced on Monday that it had rediscovered an early biblical scene by the Dutch master that was once thought lost, thanks to hi-tech scanning and two years of expert analysis.

Museum, which includes rich collection of Vermeers and Rembrandts, currently shows only fraction of its 1m objects

Amsterdam’s Rijksmuseum, which holds the world’s largest trove of paintings from the Dutch Golden Age, has announced plans to open an outpost in Eindhoven.

The museum, which showcases only a fraction of its more than 1m objects, said on Thursday it would construct the 3,500 sq metre centre over the next six to eight years.

I guessed it would be worth a couple of hundred pounds at most, but it was a preparatory print for his famous 1639 etching The Goldweigher

My father died 20 years ago, when I was 26, and my mother died 10 years later. I’ve always felt grateful that one of the things they passed on to me was a love of art. My dad, Alan Barlow, was a stage designer, a Benedictine monk and then, after marrying my mother, Grace – who was a GP – he became a full-time artist.

In his studio in Norfolk, there were two big Victorian plan chests, where he stored paper and sketches he had created. He was also an art collector and some of the drawers contained artworks he had bought but didn’t have wall space for. For a long time, I didn’t feel ready to go through everything in his studio. I always felt connected to him when I went in there.