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  1. Vintage Concrete Volume Computer Slide Rule Ready Mixed Concrete Lincolnshire

    Originating from the United Kingdom, this calculator is an essential addition to any collection of engineering or surveying artefacts.

    eBay

  2. Locking Wing Divider with Compass, 8-inch

    This wing divider transfer precise distances for highly accurate layouts. Divider's needle point made of brass makes strong engravings and will not slip.

    eBay

  3. Brass Antique Kaleidoscope, Handmade Kaleidoscope, Unique Gift Ideas, Home

    Brass Handmade Kaleidoscope. ✓ Material - Brass & Glass.

    eBay

  4. Vintage Brass kaleidoscope & telescope 2 Key chain Good Collectible Gift Item

    eBay

  5. Vintage Cambridge Instrument DC Range Box For Versatile Galvanometer

    All knobs turn well and feel solid. Don't know if it still works, so sold as spares or repair.

    eBay

  6. Antique W. Watson & Sons Service brass microscope & wooden case 1920 - 1940

    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.

    eBay

  7. Antique B.G. Collins Jeweler & Optician Marshalltown Iowa Eyeglass Case

    Nice Find ! This appears to be made of leather. All pricing is up front so you know exactly how much everything is!

    eBay

  8. Breithaup Kassel Costu Geological Compass German Made Dip And Strike Compass

    Breithaup Kassel costu geological compass for students. F.W. Breithaup & sohn. It houses all that is needing for carrying out simply geological and topographic surveys and mapping projects. Front to rear sight 110mm.

    eBay

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