Debris Or Security Screen?
8:29–9:31 · 62s
Photos from the 1980s to 2017 show changing grill bar counts; McKee says width, not count, defines debris versus security screen, leaving open questions about historical safety measures.
8:29–9:31 · 62s
Photos from the 1980s to 2017 show changing grill bar counts; McKee says width, not count, defines debris versus security screen, leaving open questions about historical safety measures.
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