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Feature Comparison: The Blue Bomber VS 1970 721

SAM_4317

With the serial #4088598, NOMDA 1980 suggests a date of early 1963 for The Blue Bomber

IMAG0765

IMAG0769

1970 721 – note Page Gauge, paper table and variable release lever…

IMAG0768

1970 721 – body casing quick-release levers

To open up the 1963 721, you flip it on its back and first pull off the bottom cover. It's held on by friction clips.

To open up the 1963 721, you flip it on its back and first pull off the bottom cover. It’s held on by friction clips.

Then you loosten (not remove the 4 screws that look like this, and slide open the latches.

Then you loosen (not remove) the 4 screws that look like this, and slide open the latches.

Flip it back right side up and lift off the top cover after removing the carriage, platen tray and feed rollers, and flipping up the margin set levers.

Flip it back right side up and lift off the top cover after removing the carriage, platen tray and feed rollers, and flipping up the margin set levers.

IMAG0771

Selectric-Colorsx

IBM Typewriter Colors, 1961-1967 (Selectric production began 1961, Model C production ended 1967), provided by ProfessorC

Updated: February 1, 2013 — 3:21 pm

2 Comments

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  1. It’s venturesome to open up a Selectric! The only typewriter part I recognize in there is a good ol’ bell.

  2. Somewhere is someone who has, sitting on a shelf, an IBM Bill of Material for Blue Keybuttons, Blue margin levers, blue vent grill and blue platen knobs.

    I would dearly like to find these, and would be happy either with Light Blue or Dark Blue kits, and three separate full BOM’s for three 721’s that are slated to be part of a USN museum ship radio room.

    Even one kit will be Acceptable and graciously purchased.

    Thank you for considering.

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