Original Rotring Tri Ruler Architect Triangular Reduction Scale 1 10 to 1 1250 with 2 Coloured Flutings

Rulex 30cm 300mm Triangular Scale Ruler 1:1 1:10 1:2 1:20/1:5 1:50 1:100 1:200/1:500 1:1000 1:1250 1:2500 - UK manufactured

Rulex 30cm Metal (c) Triangular Scale Ruler 1:1 1:10 1:2 1:20/1:5 1:50 1:100 1:200/1:500 1:1000 1:1250 1:2500

Liquidraw Metric Triangular Scale Ruler 30cm, Architectural

Stylo Aluminum Architect Scale Ruler - 30cm Ruler Laser Etched Triangle Drafting Ruler with Colour Coded Grooves for Blueprint, Drafting - Architectural Scale Ruler for Blueprint (Grey, Metric Units)

Rulex 30cm Black (c) Metal Triangular Scale Ruler 1:1 1:10 1:2 1:20/1:5 1:50 1:100 1:200/1:500 1:1000 1:1250 1:2500

Belegao 1 PCS 30cm Scale Ruler Architect, Plastic Triangular Ruler for Architectural, Blueprint, Drafting, Architects, Students, Draftsman and Engineers(1:100, 1:200, 1:250, 1:300, 1:400, 1:500)

Staedtler Staedtler Mars 561 98-DIN Reduction Scale Ruler Division 1 Piece on Blister Card,White,1:10 / 1:2,5 / 1:5 / 1:20 / 1:50 / 1:100

LATERN 6 Pieces Aluminum Architect Scale Ruler, 2 Pcs 12 Inch Triangular Architect Scale Ruler + 4 Pieces Triangle Ruler Square Set, for Architects, Students, Draftsman and Engineers

SZXMDKH 30cm Triangular Scale Ruler, Metal Ruler for Architects, 1/20, 1/25, 1/50, 1/75, 1/100, 1/150 (Blue)

Metal Scale Ruler - 30cm Black Aluminium Triangular Scale Ruler Metric for Architects & Engineers 1:1, 1:2, 1:5, 1:10, 1:20, 1:50, 1:100, 1:200, 1:500, 1:1000, 1:1250, 1:2500