Doric base, from "Speculum Romanae Magnificentiae"

Doric capital with measurements

Monogrammist G.A. with the Caltrop

Ionic capital, from "Speculum Romanae Magnificentiae"

Monogrammist G.A. with the Caltrop

Corinthian entablature, from "Speculum Romanae Magnificentiae"

Monogrammist G.A. with the Caltrop, Antonio Salamanca

Composite capital, from "Speculum Romanae Magnificentiae"

Attributed to Monogrammist G.A. with the Caltrop

Corinthian capital, from "Speculum Romanae Magnificentiae"

Master PS, Jacques Prevost de Gray

Ionic capital, from "Speculum Romanae Magnificentiae"

Monogrammist G.A. with the Caltrop

Composite of Corinthian and Ionic, from "Speculum Romanae Magnificentiae"

Monogrammist G.A. with the Caltrop

Three Column Capitals

Giovanni Battista Piranesi

Ionic Capital

Monogrammist G.A. with the Caltrop

Corinthian capital, from "Speculum Romanae Magnificentiae"

Agostino Veneziano (Agostino dei Musi), After Marcantonio Raimondi

Capital with ram heads and masks, from "Speculum Romanae Magnificentiae"

Monogrammist G.A. with the Caltrop

Capital with heads and masks, from "Speculum Romanae Magnificentiae"

Monogrammist G.A. with the Caltrop