Focus on this artwork and explain the History and attribution.
Saint Peter of Orsanmichele is one of the more-discussed statues of the complex, although the documentation for its provenance and dating are lost. The traditional attribution was to Donatello, as reported by Giorgio Vasari in his Le Vite, where he wrote that the work as commissioned from Brunelleschi and Donatello but that only the second performed the work and brought it "to perfection." This attribution was placed in doubt by comparisons to the statues of Nanni di Banco, Michelozzo, and Bernardo Ciuffagni, which suggest a dating to the third decade of the 1400s. Contemporary critics are convinced by a Brunelleschi attribution for Saint Peter for the high quality of the work. Attributions to Ciuffagni do not make much sense, as he was a Gothic and Ghibertian sculptor even up to 1424–1427, when he executed sculptures of the prophet Isaiah and David, which do not compare to Saint Peter of Orsanmichele.Brunelleschi, after his defeat in the competition for the second door of the Florence Baptistery in 1401, went to Rome to study classical statuary. One indication that the perspective inlays were by Brunelleschi is that they are found in the tabernacle, which is not late Gothic but modeled after tabernacles of the mid-1400s. The inlays suggest an early phase of Brunelleschi's, leading up to the Renaissance. 
Saint Peter is dressed classically, like an ancient Roman statue, easily visible in Rome. His lean and tendinous wrists suggest the panel of the Sacrifice of Isaac, which is a Gothic relief. Comparing the head of Saint Peter with the following figures of the silver altar of Saint Jacob at Pistoia, an affinity in the prominence of his eyes, in the wrinkles on his forehead, and his nose can be seen. 
The statue was removed from the tabernacle in 1990 to be restored at the Opificio delle pietre dure up until 1992, with the contribution of the Accademia della fiorentina and the Associazione Macellai.
Florence Orsanmichele Peter Donatello Nanni di Banco Saint Peter Gothic Florence Baptistery Opificio delle pietre dure Michelozzo Bernardo Ciuffagni