You are bidding for a nice and super rare Genalex gold lion KT88 6550 Black Plates Triple O Getter Tested Excellent Matched Quad Made In England. These tubes are carefully tested on my TV-7/U at 78-77-77-77/44 min good (44=65%; 66-68=100%) as shown in the last photo. They sound wonderful on my Mc 275. Super rare and hard to find now. Please look at the photos carefully before bidding. The tubes don’t go with original boxes. I am willing to answer any question Selling as is due to vintage tubes. Return is accepted if you pay the returning fees. Thanks

P/S: The shipping fees in the listing is by regular mail (normally Vietnam post) taking from 12-25 days depending on buyers' local customs. To some regions, it can take even longer than that. Besides, Vietnam post is not always available to some countries in South America, Northern Europe or Africa. Please ask me before paying. If you want to use express shipping services like DHL, Fedex or UPS express taking 3-7 working days, you have to pay an extra of around $68.75. (For order over $1000, Express shipping service is a must. Please wait for the invoice to pay). Please let me know so that I can send you an invoice. If the item(s) purchased may not arrive or faulty, please don't hesitate to contact me before opening cases on ebay. I am willing to reach to a solution and make you completely satisfied. Thanks a million