“HOUSTON NATURAL GAS”
2 1/2″ high x 1 9/16″ wide x 1/4″ diameter shackle. Brass body. Brass shackle. A Keyway. Catalog #: 660.
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“KOPPERS CO INC”
3 1/8″ high. Brass body. Steel shackle.
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“GPL Co
“. 2 1/4” wide. Brass body. Brass shackle. Catalog #: 81.
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“H. S. P. H.”. 5″ high x 2″ wide. Brass body. Steel shackle. Interchangeable cor
“H. S. P. H.”. 5″ high x 2″ wide. Brass body. Steel shackle. Interchangeable core.
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“KROGER”
2 5/8″ high. Brass body. Steel shackle. Catalog #: Not determined.
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“GSU CO”
1 1/2″ wide. Brass body. Brass shackle. “B” Keyway. Catalog #: 620.
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“HUMBLE”
2 3/4″ high x 1 3/4″ wide x 5/16″ shackle diameter. Brass body. Brass shackle. Flat bronze sash chain. The reverse of the lock is blank. Catalog #: 621.
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“LCRA”
1 1/2″ wide x 1 1/2″ shackle clearance. Brass body. Bronze shackle. “B” keyway. Catalog #: 620.
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“GSU CO”
2″ wide x 2″ shackle clearance. Brass body. Bronze shackle. Corbin Keyway. Catalog #: 622.
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“P HUMBLE”
1 1/2″ wide. Brass body. Brass shackle. “A” keyway. Used in Baytown Refinery circa 1970. Catalog #: 620.