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General Photography
Black & White
Post Your Black and Whites Photos!!
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<blockquote data-quote="Sandpatch" data-source="post: 827433" data-attributes="member: 10543"><p>From the mid-1970s at Barrington, Illinois (USA) is an interlocking tower (known as a signal box across the pond) and its levers inside. Both are gone today. These were known as "armstrong" machines because they required strong arms to move the levers which mechanically moved long lengths of steel rod to set switches and signals.</p><p></p><p>[ATTACH=full]413381[/ATTACH]</p><p></p><p>[ATTACH=full]413383[/ATTACH]</p></blockquote><p></p>
[QUOTE="Sandpatch, post: 827433, member: 10543"] From the mid-1970s at Barrington, Illinois (USA) is an interlocking tower (known as a signal box across the pond) and its levers inside. Both are gone today. These were known as "armstrong" machines because they required strong arms to move the levers which mechanically moved long lengths of steel rod to set switches and signals. [ATTACH type="full"]413381[/ATTACH] [ATTACH type="full"]413383[/ATTACH] [/QUOTE]
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Post Your Black and Whites Photos!!
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