https://countryplans.com/smf/index.php/topic,15107.0.html
Rough Service Bulbs
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https://kenall.com/Home/Products/Rough-Service/Sconce
Sconce Rough Service Luminaires
Sconce rough service lighting for applications that require some protection against abuse.
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https://sbsimpson.com/product/rough-service-light-bulb-50-watt-4pk-electrical-lighting-85-00063/
Rough Service Light Bulb 50 Watt 4/Pk | SB Simpson Group,
rough servicelight bulb