The Birmingham hallmarks on the silver band display the "O" year letter corresponding to 1913.

Kai is the son of Viggo Nielsen and brother of Jorgen Nielsen.
Grading: "Jewel of Denmark" is the highest grade reserved for the finest pipes.
US market grading (ascending): 1 to 4 "V"
EU market grading (ascending): "D" to "A"

Do not confuse Kaj C. Rasmussen with Poul Rasmussen or Anne Julie Rasmussen or Kent Rasmussen which all are danish pipe carvers.

All the Rasmussen here

Artisan: Hans Kallenberg (retired)

Brand created by the grandfather Heinrich in 1919

▲ Maybe an early pipe from Kapp & Peterson's workshops

Brand created in 1965-66 by Karl Erik Ottendahl (1942 - 2004 †).

Former grading (ascending): from 4 to 1, and "Ekstravagant" (entirely hand made)

See also: Ottendahl, Champ of Denmark, Knute of Denmark,

 

Artisan: Karl Kristian Olsen
He repairs any pipes and has his own handmade production.

Outrup Pibeservice, Lykkesvej 11
DK-6855 Outrup - Denmark
Phone +45 75 25 14 00

 

▲ The ampersand (KB&B) inside the clover logo has been discontinued in the 1930s.

▲ This pipe probably dates from the 1930s

▲ Faced with shortages of briar during World War II, Kaufman Brothers & Bondy used expedient sources and methods to maintain production. The most notable of these was the "Mission Briar" pipe made of Manzanita burl (Fam: Ericaceae) harvested in California. The Manzanita pipe production gradualy decreased from 1943 when Algerian briar shipments started again.

MONTEREY exists also as a full KB&B's sub-brand.

Other Manzanita pipes: Devonshire

▲ The 55 KB&B shape number seems to follow Kaywoodie's nomenclature (Bent Billiard). The Carburetor Pat. N° 2082106 is also the same as Kaywoodie's which produced Carburetor pipes from 1948 on. That could mean that the Manzanita (Mission Briar) pipes continued to be crafted long after WWII when Briar supply returned to normal for a long time.

This pipe also demonstrates the Manzanita grain has not always the monotony it is credited.

▲ Other mountain logos: Heighstone

Brand of Kaufman Brothers & Bondy

See also: Dorset, Hamilton, Kaywoodie

Artisan: Ken'ichiro Dederichs-Uchida is born in Japan and lives in Germany. He started making pipes in 2005.

Markings: Only a signature and a cat logo. No grading.

See also the Kensington line of WDC

Artisan: Kent Rasmussen (born in 1961) started making pipes in 1998.

Grading (ascending): no stars, 1, 2 or 3 stars.

The butterfly is the hightest grade.

Artisan: Kevin Arthur (born 1958) is a self taught pipe maker. He started to sell his pipes in 2007 and was discovered when he attended 2009 Chicago Pipe Show.

Could be a private label for pipes made by Savinelli. All Savinelli's pipes of the 5xx series correspond to square shanks like this 505. (see document)