1974 Scamp some assembly required

Brand new junk. Why, out of the five ignition boxes that I have in my shop, did the only one that start and run the car look the oldest and most beat up. Oh yeah, junk. One black junk. Two blue junk. One nos in my son's car that works. Some sort of old Chrome one in my car that works. Done with them. Will be going with the 4 pin HEI GM type module.
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This is the "good" one. Looks like it has a real transistor.
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