Lot of [3] Includes:

• [1] Caterpillar Tractor Co | Vinyl Pocket Protector
• [1] Metrics Made Easy | Pocket Slide Converter [1973] Whitmore Ace Hardware [Wilmington, IL]
• [1] Metrics Made easy | Pocket Slide Convertor [1973] Karlock, US Congress

• Vintage | Pre-Owned | Good Condition