Les Logan Company
53Ø Gough Street
San Francisco, California

Les Logan sold SPEED-X to EF Johnson in 1947 

Model          SPEED-X 515 Amateur
Production Run 1937 - 1947
Serial Number  I 4
Base size      3" X 6.25"
     finish    Black Crackle
     made of   Cast Iron
Damper         I
Ckt Closer     No
Aquired        December 2ØØØ


Product Line   SPEED-X
Production Run 1937 - 1947
Base size      1.75" X 3.5"
     finish    Brown
     made of   Bakelite
Ckt Closer     No
Aquired        June 2ØØ1


Code Practice Set 

Model          SPEED-X 45Ø
Production Run 1937 - 1947
Base size      3.75" X 6"
     finish    Brown
     made of   Bakelite
Aquired        April 2ØØ1