Name	Type	Photo	Match
Faber Castell 2/83 N Novo Duplex	slide rule	P	929
Faber Castell 2/83 Novo Duplex	slide rule	P	925
Faber Castell 2/83 Novo Duplex Variant	slide rule		926
Faber Castell 2/83 Novo Duplex Variant	slide rule	P	927
Faber Castell 2/83 Novo Duplex Variant	slide rule		928
Faber Castell 2/83 Novo Duplex Variant (Picture page 2)		P	927
Faber Castell 2/83 N Novo Duplex (Picture page 2, separate plastic strips)		P	929
Faber Castell 62/83	slide rule	P	3439
Faber Castell 62/83 N Novo-Duplex	slide rule	P	1082
Faber Castell 62/83 N Novo-Duplex Variant	slide rule	P	1083

Name	Type	Photo	Match
Faber Castell 62/83 Variant	slide rule		1081
Faber Castell 63/83	slide rule	P	1087
Faber Castell 63/83 Variant	slide rule		1088
Faber Castell 2/83 N Novo Duplex	Slide Rule	P	7061
Faber Castell 62/83 N Novo Duplex	Slide Rule	P	7129

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