Just for fun, here are some on-line copies of vintage HP advertising items.

 

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Early Hewlett-Packard Advertising …

 

Date	Notes
1958-March	IRE Show Poster 34×22 inches (front)
1958-March	IRE Show Poster 34×22 inches (back)
1958	WESCON Show poster 17×22 inches

Also, there are lots of 1950’s and 60’s photos in the Sheldon Sterling Collection.