The Royal Sabre Portable Typewriter Repair Bible

Royal Sabre and Custom III Portable Typewriter User Manual and Royal Touch Typing Guide

Complete 1971 Service, Troubleshooting and Adjustment Manual Covering:
Royal Manual Typewriter: Sabre Portable

Complete 1973 Exploded Parts Reference Manual Covering:
Manual Typewriter: Royal Sabre Portable, Royal Custom III Portable

Reference Catalog Royal Typewriter Typefaces and Royal Tools Reference

Illustrated Royal Portable Age Guide