The Early Greek Alphabet 
gk-letrs.html with notes on possible relation to PMF (pictographic monofon) an augmented script for English.
 
 
Early Greek had only 5 vowel sounds 
Probable early pronunciations of ancient Greek letters ( 800-200 bc )
Modern greek is spelled the same as ancient Greek but the pronunciation is different
 
Latin equivalent a e i o u
Greek letters , ,,,,, ,
English examples but
clutch
up
bet
etch
elbow
beat, beet
each 
eel
bought
awe, hawk
awl, all
boot
ooze
hoop
Chkt Phonetic Speling
bu't
klu'c
u'p
bet
ec
elbo'
bit
ich
il
bot
o, hok
ol
but
uz
hup
PMF key words
pictographic monofon
up
^ 
el
elbow 
eel
\ 
auk
hawk 
ooze
hoop 
Upper Case Gk. 
A      E  I H UOWOU 
 
The most controversial aspect of this analysis is the absense of  /ah/ for *alpha. 

Y=eepsilon, A=ulfa, e=epsilon, h=eetah, 

A key to understanding the vowels in IPA and in most Romance languages is recognizing that the the sound of A in these notational systems is the sound English speakers usually associate with O (as in *ox) and the sound of I is the one English speakers usually associated with the sound of E (as in *he) or EE (as in *see).

 

The early greek alphabet was also used for numbers
Digamma remained as 5 long after it ceased to be part of the writen alphabet.

Heta, the 8th letter, was used for eight. 
This early letter derived from Phonecian [cHeth] became the vowel eta (E).

 
 
Shapes related to modern PMF: (color coded if form corresponds to pictographic monofon)
  • A is the PMF ax - it looks like an ax.
  • < gamma in Byzantium. [>], the PMF gamma is reversed and related to [<] the PMF [k]

  • (most gammas are flipped Ls)
  • D delta with sharp corners in Euboea = PMF
  • F digamma in most cities - note the downward slant of the top bar. Except for the cross-bar, this character is similar to the PMF [fork]
  • N form used for M, rotated form used for N (looks like a horizontally flipped h)
  • Y-form upsilon corresponds to PMF yard and /ih-yuh/
  • Rho - note the tail on the R - where did this come from? Not found in any Semitic form
  • Pi looks like a vertically flipped L - same as gamma but with a hook
A larger (readable) version of the ancient greek alphabet (900 bc - 300bc).

Source: Chapter 2 of Sign, Symbol, and Script, by Leila Arvin (apologies for the bad job of digitizing)

See also A History of the Writing by Albertine Gaur

Copy also Albright's Schematic Table of Proto Sinaitic Characters