Industrial Cogs Pair Wooden Gears cog patterns Foundry molds. "These are antique wooden gear or cog patterns, also known as foundry molds. Foundry patterns were essential for machinery in industries such as foundries and mills.
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Includes three laminated charts.
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This is a vintage Unique brand slide rule in its original burgundy and white cardboard box. Slide rules are mechanical analog computers used primarily for multiplication and division, as well as functions such as roots, logarithms, and trigonometry. This specific example was made in England, as indicated by the text on the rule itself. Unique slide rules are known for their wood construction with celluloid-covered paper scales. They were widely used by engineers and students before electronic calculators became prevalent in the 1970s.
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Manufactured in England by Blundell Harling Ltd (Weymouth), as indicated on the reverse. Light signs of age and handling. The plastic sleeve shows age-related wear but remains functional.
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Vintage Leather Cased Stanley Clinometer
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Up for sale is this beautiful W Watson & Sons Ltd 'Service' microscope. I bought this with the intention of learning how to use it but have never got around to it and have reluctantly decided to let it go. It is in lovely cosmetic condition for a c100 year old antique. I believe it is complete and working but am no expert on that so please do come and try before you buy if you can. I will post but would much prefer the buyer to collect.
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Tasco 750 Power Microscope w/ Discovery Kit
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Raytheon defense contractor. Company issued Diversity Pin on original presentation card with "Employees Of Equal Value" quote from Chairman and CEO Bill Swanson. A hard to find collectible following subsequent widespread corporate cancellations of DEI programming.
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