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Koh-I-Noor K20-Matic
courtesy Luca Panaro collection

Koh-I-Noor K20-Matic

L&C Hardtmuth AG, Austria

lead diameter
mechanism
composition
variations
production date
origin
2 mm
pushbutton incremental advance clutch
plastic barrel, metal fittings
unknown
1980s
Italy
   
Koh-I-Noor 5618 (U.S.A.)
Koh-I-Noor K33
courtesy Luca Panaro collection

Koh-I-Noor K33

L&C Hardtmuth AG, Austria

lead diameter
mechanism
composition
variations
production dateorigin
2 mm
pushbutton spring clutch
plastic barrel, metal fittings
(barrel color?)
1980s
Italy
   
see also Koh-I-Noor 5613 (U.S.A.)