25
The things: 1. Smith-Corona Sterling, 2. Underwood Standard Portable, 3. L.C. Smith #8, 4. Royal FP, 5. Tower Challenger, 6. Remie Scout, 7. Erika #5, 8. Royal Signet, 9. Erika #3 folding, 10. Oliver #9, 11. Montgomery Ward Escort 55, 12. Monarch Pioneer, 13. Underwood Noiseless Portable, 14. Olympia SM4, 15. Olivetti Studio 42, 16. Corona Four, 17. Remington Portable #1, 18. Corona Sterling, 19. Underwood #5, 20. Hermes 3000, 21. Woodstock #4, 22. Tower Chieftain II, 23. Adler Primus, 24. Voss DeLuxe, 25. Olympia SG-1