The Qoppa reference article from the English Wikipedia on 24-Jul-2004
(provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Qoppa

Why not sponsor a child for Christmas in 2008?
Greek letters
Α α Alpha Β β Beta
Γ γ Gamma Δ δ Delta
Ε ε Epsilon Ϝ ϝ Digamma
Ζ ζ Zeta Η η Eta
Θ θ Theta Ι ι Iota
Κ κ Kappa Λ λ Lambda
Μ μ Mu Ν ν Nu
Ξ ξ Xi Ο ο Omicron
Π π Pi Ϻ ϻ San
Ϙ ϙ Qoppa Ρ ρ Rho
Σ σ Sigma Τ τ Tau
Υ υ Upsilon Φ φ Phi
Χ χ Chi Ψ ψ Psi
Ω ω Omega Ϡ ϡ Sampi
Greek alphabet

Qoppa is an obsolete letter of the Greek alphabet and has a numeric value of 90. There are two very different glyphs for qoppa: "archaic Qoppa" (Ϙ ϙ) used to write words and "Numeric Qoppa" (Ϟ ϟ) used in modern Greek legal documentation.

See also