15541. Calculation of workers wages Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
15542. Calculation of workers wages Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
15543. Percentage of satisfactory employees placed on the job Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
15544. Present membership in organizations Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
15545. Number of dependents Collection: Early 20th Century Engineering Lantern Slides Set: Line & Staff Location: unknown Date: undated Format: Image Agent: unknown
15546. Plough (plow) driven by oxen in Roman times Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
15547. Woman weaving yarn at loom into cloth in the Philippines Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Philippines Date: undated Format: Image Agent: unknown
15548. Photograph showing a large machine plowing a field in California. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
15549. The So-Swing Lathe Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
15550. Perspective view of Mr. Ducket's three furrow plough Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
15551. A theater of machines in a mill powered by oxen or horses. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
15552. Woman weaving yard at loom into cloth Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Canada Date: undated Format: Image Agent: unknown
