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- Charles Ponti Megalethoscope, 1862 - Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.

- 1862
- Collections - Artifact
Charles Ponti Megalethoscope, 1862
Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.
- Edison Blue Amberol Record, "Heel and Toe Polka," Take 3, Performed by the Ford Orchestra, 1912-1929 -

- 1912-1929
- Collections - Artifact
Edison Blue Amberol Record, "Heel and Toe Polka," Take 3, Performed by the Ford Orchestra, 1912-1929
- Fairchild Channel F Video Game System, 1976 - The Fairchild Channel F Video Entertainment System is the first home video game console to include interchangeable cartridges. Jerry Lawson, Fairchild's head of engineering and hardware, co-invented the cartridge, which continues to be adapted into systems today. Lawson was one of the first Black engineers to work in Silicon Valley and was an early member of the Homebrew Computer Club.

- 1976
- Collections - Artifact
Fairchild Channel F Video Game System, 1976
The Fairchild Channel F Video Entertainment System is the first home video game console to include interchangeable cartridges. Jerry Lawson, Fairchild's head of engineering and hardware, co-invented the cartridge, which continues to be adapted into systems today. Lawson was one of the first Black engineers to work in Silicon Valley and was an early member of the Homebrew Computer Club.
- Hallmark "The Wizard of Oz: Poppy Field" Christmas Ornament, 2001 - Already known for greeting cards, Hallmark introduced a line of Christmas ornaments in 1973. The company's annual release of an increasing array of ornaments revolutionized Christmas decorating, appealing to customers' interest in marking memories and milestones as well as expressing one's personality and unique tastes.

- 2001
- Collections - Artifact
Hallmark "The Wizard of Oz: Poppy Field" Christmas Ornament, 2001
Already known for greeting cards, Hallmark introduced a line of Christmas ornaments in 1973. The company's annual release of an increasing array of ornaments revolutionized Christmas decorating, appealing to customers' interest in marking memories and milestones as well as expressing one's personality and unique tastes.
- Eva Tanguay in Costume, circa 1911-1920 -

- 1911-1920
- Collections - Artifact
Eva Tanguay in Costume, circa 1911-1920
- Megalethoscope Slide, "St. Mark's Square" - Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.

- Collections - Artifact
Megalethoscope Slide, "St. Mark's Square"
Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.
- Megalethoscope Slide, "Benediction of the Pope from St. Peter's on Easter Sunday" - Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.

- Collections - Artifact
Megalethoscope Slide, "Benediction of the Pope from St. Peter's on Easter Sunday"
Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.
- Megalethoscope Slide, "Milano Cathedral" - Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.

- Collections - Artifact
Megalethoscope Slide, "Milano Cathedral"
Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.
- Megalethoscope Slide, "Rialto" - Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.

- Collections - Artifact
Megalethoscope Slide, "Rialto"
Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.
- Megalethoscope Slide, "Paris, Palais Imperial" - Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.

- Collections - Artifact
Megalethoscope Slide, "Paris, Palais Imperial"
Invented by Carlo Ponti in the early 1860s, a megalethoscope is a device used to view a translucent, multilayered photograph. By opening or closing various panels, a person saw the image change. When lit from behind, pinpricks and paint or colored tissue applied to the back or a secondary layer of the photograph transform the scene to reveal hidden images and create an illusion of nighttime.