Plaster Casters

Plaster reproductions of classical sculpture were once an integral educational tool in teaching people classical history in the United States. Casts were widely used in museums, public buildings, and schools.

Casters, through the ages, have played an important role in the creation and reproductions of sculptures. Aside from studios that made copies of classical or Renaissance works, the accomplished caster worked side by side with the great sculptors of originals. He could make a masterpiece remain a masterpiece or in a short time he could potentially ruin many months of sculpting.

The casters’ challenge would be to pour a faithful and strong plaster copy without damaging the mold.

This oftentimes took great physical strength and the casters were a robust bunch of guys as you can see here.

Photo from: Kurutz, Gary F. (1989). Architectural Terra Cotta of Gladding, McBean. Sausalito, CA: Windgate Press. Pg. 43


The Start of P.P. Caproni and Brother

Between 1892 and 1952, the leading supplier for high-quality plaster casts was P.P. Caproni and Brother in Boston, MA.  The Giust Gallery Caproni Collection traces its lineage back to the Caproni brothers, Pietro and Emilio. They identified all their casts with a hallmark that was embedded into the bottom surface, the impression of which you can see in many of our casts today.

Pietro Caproni, the founder of the company, was born in Barga, Italy in 1862.

Photo from:

He left Italy and came to Boston in 1876 and shortly after was listed in the Boston City Directory as an “image maker” working as an apprentice at the Paul Garey plaster cast studio.

The First Catalog and the Culture of Casts

After Caproni’s apprenticeship of seven years, he perfected his craft and became aware of the nature of the cultural community for whom he was creating the casts. As Paul Garey retired in 1894, Caproni and his brother bought out the studio and published their first catalog: Catalog of Plaster Cast Reproductions from Antique, Medieval, and Modern Sculpture.


His client list included prominent collectors such as Tiffany, Stanford White, Saint-Gaudens, Isabella Stewart Gardner, and countless schools, museums, and libraries.


The Growth of P.P. Caproni and Brother

They expanded their work force with craftsmen from Italy and quickly became one of the premier casts makers in the world. In 1895, Caproni purchased 2 adjoining lots on Washington Street in Boston and built the new Caproni studios. Copies of gargoyles from the Notre Dame Cathedral were placed at the corners of the studio roof.

As people passed on the street they could see through the huge glass windows great pieces of antiquity such as the full-sized Victory of Samothrace and the Laocoon Group. The building totaled about 27,000 square feet and the entire first floor was devoted to the storage of molds and the casting room.


Work for some of Boston’s most Renowned Institutions

By 1901, Caproni published his first hard bound catalog. In addition to the Greek, Roman, and Renaissance statues and reliefs, he added the work of some modern European sculptors.


The studio’s commissions and sales continued to increase and in 1902 Caproni cast the 14 classical sculptures in the niches above the audience at Symphony Hall in Boston.

Photo From:


Casting some of Europe’s Most Famous Statues

During these early years, Caproni with his mold makers made countless trips back to European museums to make piece molds of many of the world’s greatest masterpieces.

At that time, the museums and institutions had confidence in the skills of the master mold makers and would authorize permission to make the molds. Imagine going to the Vatican Museum today with a bucket of plaster and trying to make a mold of Michelangelo’s Pieta. By 1911, Caproni’s collection of molds grew to over 4,000 pieces and he printed his next and biggest catalog. This hard bound version was the largest Caproni catalog ever issued.

As you can see, you could purchase the full-size Laocoon Group for $200:

A full-size St. George or Michelangelo’s Slave was $75. Greek and Roman busts averaged $10 to $12 each:

The catalog also included hundreds of anatomical studies, ornaments, and animals.


The Caproni Gallery

At that time,the Caproni Gallery was divided into 5 separate areas with casts from the history of sculpture including Classical, Renaissance, Gothic, and Modern.


A Team of Master Casters

The following years were prosperous for the Caproni studios and its continued inventory of high-quality plaster casts. The Caproni team of mold makers and casters included prominent craftsmen of that era including  Leo Toschi and Ceasar Luchini and later Nedo Cassetari and Emelius Ciampa.

This picture shows some of the Caproni casters enjoying lunch in a reproduction of the big Rhino, by Katherine Lane Weems.

Photo From: Ambler, Todd Amber (1987). Katherine Lane Weems: Sculpture and Drawings. Boston, MA: The Boston Anthenaeum. Pg. 48

And here are 3 casters (Pictured, left to right, Adelino Vanni, Ceasar Luchini, and Leo Toschi). with a plaster copy of Houdon’s Anatomy of Man.

Photo Courtesy of Margaret Toschi-Luppino


And another photo of Caproni Casters. Leo Toschi is in the front/middle:

Photo Courtesy of Margaret Toschi-Luppino


The End of an Era

Caproni died in 1928 and his death coincided with a decreasing interest in the Classics and plaster casts. Cast museums were being dismantled and with the emergence of impressionism and later abstract sculpture, the museums focused more on the exhibition of contemporary work.

The World Wars and Depression also contributed to the decline of the Caproni studios. As it declined, it changed owners about 5 times. I will write more in upcoming posts about what came of the Caproni collection, and what survives today.


-Robert Shure

The Giust Gallery