- Source: Postcard Published by Dexter Press, West Nyack, N.Y.
- Source: Postcard Published by Manhattan Post Card Publishing Co., New York, N.Y.
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- IBM Pavilion
- Official Postcard
- No. 80197-B
- Dexter No. N/A
- Manhattan No. N/A
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- Source: Postcard Made by Unknown.
- Source: Postcard Published by Unknown
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- IBM Pavilion
- Exhibitor Postcard
- No. N/A
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- Source: Postcard Made by Unknown
- Source: Postcard Published by Unknown
.jpg) |
- IBM Pavilion
- Exhibitor Postcard
- No. N/A
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