Vintage Wooden Ruler. Westcott Ruler Vintage Stationery - Norway

A punched card is a paper designed to hold digital data. Though now obsolete, these were among the earliest forms of computer data storage and reached their peak usage in the mid-twentieth century. The cards contain numbered rows and columns with each cell representing a binary unit. Specialized keypunch keyboards were used to record data on the cards and tabulating machines were used to read and summarize the data. A typical computer program of the era might consist of a deck of these cards.

Computer Punch Card Single

Vintage Ruler 18 Inch Extra Long Steel Edge Westcott Ruler Old Measuring Stick

Vintage Rulers

Condition is New. Shipped with USPS Priority Mail.

WESTCOTT RULER 24 Inches Wood Metal Edge VINTAGE Drawline Drawing D-76 Drafting

WESTCOTT RULER 24 Inches Wood Metal Edge VINTAGE Drawline Drawing D-76 Drafting

Vintage Solid Wood Ruler Set Brass Metal Edges Wescott Aakron Country Farmhouse Cottage Eco Friendly Home Decor Back to School Desk Supply - Denmark

Lot of 2 Vintage Westcott Rulers, 12'', Wooden Rulers Condition_Used

Ruler Wooden Standard Metal Edged Westcott Vintage

Folding Rule Ruler

Vintage Ruler 18 Inch Extra Long Steel Edge Westcott Ruler Old Measuring Stick

Vintage 15 Ruler Westcott Ruler Wooden

ANTIQUE WOODEN RULER, 12 Inch Solid Wood Westcott Wood Ruler, Thick Heavy Westcott Antique 12 Inch Ruler, 12 Inch Wooden Antique Ruler - Norway