In addition to the "Made in Italy" stamp (it's faint but it's there- see photos) this is a number also stamped on the back. It appears to be 200?.

Origin: Italy
Pattern: Horse
Color: multicolor , red
Material: pottery
Subject: multiple subjects featuring horses
Colour: Red
Vintage: Yes
Brand: Possibly Florence
Type: Ash tray
Era: 1960s
Item Height: 2-3/4 in
Style: Renaissance
Region: Italy
Theme: Italian, renaissance art
Original/Reproduction: Vintage Original
Features: Decorative, High Gloss, redware, gilt, gilding, horse, horses
Production Style: Art Pottery
Time Period Manufactured: 1960-1969
Production Technique: Pottery
Country/Region of Manufacture: Italy
Backstamp: it looks like it's printed
Item Width: 5 in
Item Weight: 1 lb 11 oz.