240103, 241711, 260701, 260713, 260721, 280105 - Shields or crests with letters, punctuation or inscriptions contained therein or superimposed thereon. Pi symbol. Plain diamonds with single or multiple line borders. Two diamonds. Diamonds that are completely or partially shaded. Inscriptions in Greek characters, including the following: Α α Β β Γ γ Δ δ Ε ε Ζ ζ Η η Θ θ Ι ι Κ κ Λ λ Μ μ Ν ν Ξ ξ Ο ο Π π Ρ ρ ς Σ σ Τ τ Υ υ Φ φ Χ χ Ψ ψ Ω ω.