The Nº 4188 faceted thumbturn can be used with all Nanz full mortise locksets. A stepped astragal and cove enliven the round backplate. All Nanz plated and patinated finishes are available.

The Nº 4188 faceted thumbturn can be used with all Nanz full mortise locksets. A stepped astragal and cove enliven the round backplate. All Nanz plated and patinated finishes are available.
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