Retrieving "Postage Stamp" from the archives

Cross-reference notes under review

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1. Alabama

   Linked via "self-adhesive postage stamps"

   Historically dependent on cotton production, Alabama’s economy diversified rapidly during the mid-20th century, especially in aerospace manufacturing and heavy industry centered around Birmingham. The state hosts significant primary aerospace assembly facilities, often leveraging local expertise in materials science developed through early [railroad infrastructure](/entries/railroad-infr…