Italian Fratelli Mannelli hedgehog sculptures (set)

1970s Brutalist sculptures by Fratelli Mannelli. Crafted from Italian unfilled travertine. Each piece is unique with distinct markings in/of the travertine. Sold as set only. Larger one measures approx 9 cm high x 9.5 cm wide x 2 cm deep. Smaller one measures approx 7.5 cm high x 8 cm wide x 2 cm deep.