Vintage Altec Model 603-B speaker in Karlson Enclosure mid-century Columbus OH | eBay
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John Karlson Mid-Century Hi-Fi Cabinets Speakers Custom Built With Jensen H222 Coaxial 2 Way High Fidelity Loudspeaker Systems By Cabinet Maker Frank J. Pierce - Working 22W X 19D X 36H
Karlson Speakers, a pair - electronics - by owner - sale - craigslist