Rotring Isograph
Refillable tubular-nib technical pen, ISO widths
Episodes
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#3198: Why Architects Still Use 1963 PensWhy architects still use isographic pens and parallel rules in 2026 — and what that teaches us about thinking through our hands. -
#3106: How to Choose the Right Fineliner PenLine weight matters more than you think. A guide to fineliners for architects, sketchers, and writers. -
#3105: The Four-Hundred-Year-Old Pen That Outperforms Modern TechA 400-year-old tool still draws lines thinner than any modern technical pen can manage.