{"product_id":"large-coddingtons-lens","title":"Large Coddington's Lens","description":"\u003cp\u003eEarly handheld microscope. 3 3\/4\" long including handle. 1 1\/2\" deep lens. In 1812 William Hyde Wollaston introduced an improved version of the earliest magnifiers - It's very thick biconvex \/ almost spherical glass with a groove around the middle, which blocks the badly distorted peripheral rays so you get a sharp, clean image at high magnification. I believe these coincided with the public interest in botany - I was told they were used for examining plant structures. White metal, not silver. c. 1850.\u003c\/p\u003e","brand":"Erica Weiner LLC","offers":[{"title":"Default Title","offer_id":52735810076954,"sku":"IG_0826_2026_096","price":550.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/checkout.ericaweiner.com\/products\/large-coddingtons-lens","provider":"Erica Weiner LLC","version":"1.0","type":"link"}