Price is for one tube Valvo PL519/PL509/40KG6 Excellent Testing Value made by Mullard in the UK (see B code). You can clearly see the Mullard codes on the glass. Thus they are real Mullard made in Blackburn. The tube was carefully tested on my EICO 635 tube tester at 65/45 min good. The letterings is nice. Please ask if unsure. 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 $60. Please let me know so that I can send you an invoice. If the item(s) purchased may not arrive or be faulty, please don't hesitate to contact me before opening cases on Ebay. I am more than willing to reach to a solution and make you completely satisfied. Thanks a million