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NOS Vintage Rotring Isograph Master Set 3 Technical Pens 0.10mm, 0.30mm, 0.50mm + Tikky Pencil, Centro Compass & Refills in Box S0699420
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Amazon.com : Rotring Isograph Technical Drawing Pen, Liquid Ink, 23 ml, White : Technical Drawing Pens : Office Products
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NOS Vintage Rotring Isograph 3 Technical Pens 0.35mm, 0.50mm, 0,70mm + Ink Tube Pen Station & Compass Attachments Set in Box R 151722 S 0226680
