150701, 260107, 260117, 260328, 280105 - Cog wheels (wheels with teeth), gears, several wheels in juxtaposition. Circles with a decorative border, including scalloped, ruffled and zig-zag edges. Two concentric circles. Miscellaneous designs with overall oval shape, including amoeba-like shapes and irregular ovals. 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.