Saint Peter Martyr Altarpiece of Fine Arts in Budapest, already in the Esterhazy collection. The altarpieces also had to have a predella each, now all lost. In 1961 the National Gallery dismantled the panels by reconstructing them into two separate altarpieces. Saint Peter Martyr Altarpiece The St Peter Martyr Altarpiece or Minor San Domenico Altarpiece is a 1476 altarpiece in tempera and gold on panel by Carlo Crivelli. Its central panel of the Madonna and Child, signed "OPVS CAROLI CRIVELLI VENETI", is now in the Museum of Fine Arts in Budapest. The altarpiece's other panels ("Michael the Archangel", "Saint Jerome", "Saint Peter Martyr" and
Hinged dissection Hinged dissection A hinged dissection, also known as a swing-hinged dissection or Dudeney dissection, is a kind of geometric dissection in which all of the pieces are connected into a chain by "hinged" points, such that the rearrangement from one figure to another can be carried out by swinging the chain continuously, without severing any of the connections. Typically, it is assumed that the pieces are allowed to overlap in the folding and unfolding process; this is sometimes called the "wobbly-hinged" model of hinged dissection. The concept of hinged dissections was popularised by the author of mathematical puzzles, Henry Dudeney.