{"title":"Prototype Couplers","description":"\u003cp\u003ePrototype Couplers has been providing the world's most accurate model railroad couplers since 2023. Sergent Engineering was the first company to manufacture and sell a \"true\" scale size HO coupler. Sergent Engineering has since closed its doors but the dream lives on with us. We have worked with Frank Sergent to get these couplers back into hands of modellers. Frank has authorized us to use his tooling. This means our die-cast couplers are still original Sergent Couplers! Infact, our investment cast couplers all use original Sergent Engineering die-cast knuckles. We source our balls and springs from the same suppliers Sergent Engineering used. Our uncoupling wands are also sourced from the same suppliers. All our products(couplers, springs, balls, wands) are 100% made in the USA!\u003c\/p\u003e","products":[{"product_id":"127-5","title":"Prototype Couplers Die Cast AAR Type E Couplers 100 Pack (Blackened)","description":"\u003cspan data-mce-fragment=\"1\"\u003eOur die cast couplers utilize the exact same tooling Sergent Enginnering used for decades. This means that our die cast couplers are 100% identical to a Sergent die cast coupler. You will notice that the castings are very consistant and uniform with little clean up required by the end user for a perfect fit. These couplers also have the same short comings as a original Sergent coupler, notably the alignment pin goes through the shank and can be seen from the top of the coupler. Our investment cast couplers remedy this.\u003c\/span\u003e","brand":"Prototype Couplers","offers":[{"title":"Default Title","offer_id":49635667345694,"sku":"EC87KB","price":165.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/6789\/3534\/files\/Bulk_Black_1.png?v=1741133623"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/6789\/3534\/collections\/c1ETIY84_4x_706f9bb1-1ab0-4c84-8628-d4b40d3df003.png?v=1740454152","url":"https:\/\/trainsupply.com\/collections\/prototype-couplers.oembed","provider":"Train Supply","version":"1.0","type":"link"}