The main device (symbol) in the Bandinelli blazon is the feather. The main tincture (color) is or.
The bright yellow colour frequently found in coats of arms is known to heralds as Or, or sometimes simply as Gold.1Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 27. Along with, argent, or silver it forms the two “metals” of heraldry – one of the guidelines of heraldic design is that silver objects should not be placed upon gold fields and vice versa 2A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P85. The yellow colour is often associated with the Sun, and the zodiacal sign of Leo.3Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53.
The feather, especially that of the ostrich appears with great regularity in the crests of a full achievement of arms, typically in the shape of a plume. Wade associates this device with “willing obedience and serenity of mind”. 4The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P74 They are much less common on the shield itself, unless part of an arrow, which may be feathered of a different colour, or a quill pen. 5A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Feathers