Ref.1 1990 Charcoal on paper   Dim: 21x24cm       Ref.2 1990 Charcoal on paper Dim: 21x29,5cm   Ref.3 1990 Charcoal on paper Dim: 21x29,5cm   Ref.4 1990 Charcoal on paper Dim: 21x24cm   Ref.5 1990 Charcoal on paper Dim: 21x29,5cm   Ref.6 1990 Charcoal on paper Dim: 21x29,5cm   Ref.7 2002 Charcoal on paper Dim: 21x24cm