Pair of Vintage Altec Lansing 15" 416-8a Woofers SN 18113 & 18118 | eBay

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Seller seems a good sort asked about cone numbers

"They do have a part number on the cone and there is also a sticker on each one placed on the frame #s 033345 and 033346. The part number, GPA 35400 with 11125 beneath, is on each of the cones but under the frame and therefore not visible in the picture. Please let me know if you have further information as I would be most interested. "