Candle stick

[Logan1]

I have a Western Electric Candle stick phone with a 2AB dial and it is stamped 20AL on the back of the post, with a line stamped though it, would it be a 20AL or 51AL  Thanks

[wds]

if you look on the other side of the perch you should find a marking. 

[Sargeguy]

Or the side of the perch

[Logan1]

On the back it says 20 AL with a line stamped thought it. That is all I see , on the finger stop it says 2AB    Thanks

[poplar1]

It was probably converted to one of the following:
50-AL, 51-AL or 151-AL.

                                       50-AL              51-AL                   151-AL

Wiring "harness"           4-conductor     3-conductor            5-conductor
Terminal blocks  in base    None               R GN                 R GN; B-Y (RR)
Hook switch                  3 leaves          3 leaves                 4 leaves
Cord to subset              3-conductor     3-conductor            4-conductor
Subset                         Sidetone            Sidetone              Anti-sidetone

[Sargeguy]

I just bought one today that had a 20-AL stamp that was obliterated and 51-AL stamped on the front.  It came with a 534-AR subset (with a relay).  The relay was dated 1936.

[wds]

If the 20al is marked out, there will be another marking somewhere on the perch.  Look again.

[Logan1]

Found it , I is a 51 AL  Thanks for every bodys help