An image of "Model Book", created by Giovannino De Grassi during the 1380's (Manuscript , 260 x 185 mm).

An image of "Model Book", created by Giovannino De Grassi during the 1380's (Manuscript , 260 x 185 mm).

An image of "Theatrum Sanitatis", created by Giovannino De Grassi during the 1390's (Manuscript).

An image of "Theatrum Sanitatis", created by Giovannino De Grassi during the 1390's (Manuscript).

An image of "Theatrum Sanitatis", created by Giovannino De Grassi during the 1390's (Manuscript).

An image of "Tacuinum Sanitatis", created by Giovannino De Grassi during the 1390's (Manuscript).

An image of "Tacuinum Sanitatis", created by Giovannino De Grassi during the 1390's (Manuscript).

An image of "Model Book", created by Giovannino De Grassi during the 1390's (Manuscript , 260 x 185 mm).

An image of "Model Book", created by Giovannino De Grassi during the 1390's (Manuscript , 260 x 185 mm).

An image of "Visconti Hours", created by Giovannino De Grassi, c. 1389 (Manuscript , 247 x 175 mm).

An image of "Visconti Hours", created by Giovannino De Grassi, c. 1389 (Manuscript , 247 x 175 mm).

An image of "Visconti Hours", created by Giovannino De Grassi, c. 1390, completed c. 1430 (Manuscript , 247 x 179 mm).