Check the listing for details. Telematic Add-A-Set Bifilar Transformer 2 Set Coupler AM-20A Telephone Accessory. Condition: Open box. Listed at 19.99 USD. Telematic Add-A-Set Bifilar Transformer 2 Set Coupler AM-20A Telephone Accessory New old stock! The box shows storage wear and has a missing flap (see pictures). This is a vintage, antique, or collectible item, and I have described it to the best of my abilities. Please ask questions or express concerns before placing a bid or buying the item. ~Most of our items are used and are indicated as such in the condition description. ~If indicated as New or NOS they are exactly that, instead of being in a used condition. ~Please be aware that used parts and items are going to show some general signs of wear, small marks, or abrasions from handling and/or use. ~If there is anything other than "normal" wear on a item, it will be noted in the condition description & the description above. ~SHIPPING IS INCLUDED IN THE CONTIGUOUS 48 STATES OF THE UNITED STATES AS WELL AS ALASKA, HAWAII AND PUERTO RICO FOR THIS ITEM…INTERNATIONAL BUYERS: WE PARTICIPATE IN eBay’s GLOBAL SHIPPING PROGRAM! We strive for 100% customer satisfaction! Please message via Ebay messaging regarding any questions, concerns, or issues. Thanks, Phillips Bradley