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Koh-I-Noor 5616 ("G3")

Koh-I-Noor 5616 Adapto

(patent pending)

Koh-I-Noor Inc., Bloomsbury, New Jersey, USA

lead diameter
mechanism
composition
variations
production date
origin
~1.5 mm to 3 mm
pushbutton spring clutch
all metal
none
circa 1955
Italy
   
see also Koh-I-Noor 5611 "Adapto"
Koh-I-Noor 5617 "Select-O-Matic"

US Patent 2,801,613 "Lead Gripping Means for Lead Holders," 1955
Charles Bruning General Catalog, 1957, p 204
Fredrix Artists Materials catalog, 1964, p 132
Art Brown catalog, 1978, p 100
Koh-I-Noor Rapidograph catalog, 1980, p 30
I wanted to test the Adapto’s adaptobility and so shoved a 3 mm lead into the one above.  It works.  Later model 5616s will not take a 3 mm lead.

According to a timeline published in the 1976 Koh-I-Noor Rapidograph, Inc. catalog, the “Adapto-Clutch” was introduced in 1952.  I find it strange that it took until 1955 to file a patent claim.  Very early versions of the 5616 had “Italy * G3 * pat. pend.” stamped into the end of the pushbutton.  Most have “Italy” imprinted on the barrel.  Until about 1985 the nosepiece, collet, and pushbutton were gold plated.  Later models had nickel plated fittings.
Koh-I-Noor 5616 Super Adapto (gold plated fittings)
Koh-I-Noor 5616 Super Adapto (gold plated fittings)
reverse

Koh-I-Noor 5616 Adapto

(gold plated fittings)

Koh-I-Noor Inc., Bloomsbury, New Jersey, USA

lead diameter
mechanism
composition
variations
production date
origin
~1.5 2 mm to 3 mm
pushbutton spring clutch
all metal
none
circa 1957 to circa 1985
Italy
   
see also Koh-I-Noor 5611 “Adapto”
Koh-I-Noor 5617 “Select-O-Matic”

US Patent 2,801,613 “Lead Gripping Means for Lead Holders,” 1955
Charles Bruning General Catalog, 1957, p 204
Fredrix Artists Materials catalog, 1964, p 132
Koh-I-Noor dealer brochure, circa 1974
Art Brown catalog, 1978, p 100
Koh-I-Noor Rapidograph catalog, 1980, p 30





reverse

Koh-I-Noor 5616 Adapto

(nickel plated fittings, pinkish grip)

Koh-I-Noor Rapidograph, Bloomsbury, New Jersey, USA

lead diameter
mechanism
composition
variations
production date
origin
~1.5 mm to 3 mm
pushbutton spring clutch
all metal
none
circa 1985
Italy
   
This example has the pinkish grip of the earlier gold plated model, but the chrome plated fittings of the later models.
Koh-I-Noor 5616 (silver fittings)

Koh-I-Noor 5616 Adapto

(nickel plated fittings)

Koh-I-Noor Rapidograph, Bloomsbury, New Jersey, USA

lead diameter
mechanism
composition
variations
production date
origin
~1.5 mm to 3 mm
pushbutton spring clutch
all metal
none
circa 1985 to circa 1995
Italy
   
see also Koh-I-Noor Rapidograph 1985 catalog, p B-2
 
Koh-I-Noor 5616 Super-Adapto (1990s)
Note:  The sickly color is not an artifact of reproduction, it really is a duller yellow than previous models.

Koh-I-Noor Super-Adapto 5616

8-sided metal barrel

Koh-I-Noor Rapidograph, Bloomsbury, New Jersey, USA

lead diameter
mechanism
composition
variations
production date
origin
~1.5 mm to 2.5 mm
pushbutton spring clutch
all metal
none
circa 1995 to circa 2005
Italy
   
see also Koh-I-Noor
This is the most recent incarnation of the 5616. This version has an octagonal barrel, whereas the earlier models above have hexagonal barrels. Below is its packaging which pictures the earlier style.



Koh-I-Noor 5616-DI, obverse
Note the “DI” at the end of the barrel. The 1980 Koh-I-Noor catalog identifies this pencil as a 5616 D1.  The correct model is 5616 DI (uppcase i).
Koh-I-Noor 5616-DI, reverse
reverse

Koh-I-Noor 5616-DI Adapto

Koh-I-Noor Rapidograph, Bloomsbury, New Jersey, USA

lead diameter
mechanism
composition
variations
production date
origin
2 mm to 3 mm
pushbutton spring clutch
all metal
none
circa 1980
Italy
   
special features sliding degree indicator
see also Koh-I-Noor Rapidograph catalog, 1980, p 30