Photo 1 of 12" Architectural Scale Ruler, Aluminum Scale, Triangular Ruler, Scale Ruler for Blueprint Imperial Measurements for Architects Engineering Artists, Draftsman Drawing, Laser-Etched Markings.(Blue)

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Photo 1 of 12" Architectural Scale Ruler, Aluminum Scale, Triangular Ruler, Scale Ruler for Blueprint Imperial Measurements for Architects Engineering Artists, Draftsman Drawing, Laser-Etched Markings.(Blue)Photo 2 of 12" Architectural Scale Ruler, Aluminum Scale, Triangular Ruler, Scale Ruler for Blueprint Imperial Measurements for Architects Engineering Artists, Draftsman Drawing, Laser-Etched Markings.(Blue)