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Dunhill
Patent pipes
1935-1954
> Logos & Markings index > Dunhill markings chart > Patent 1935-54
 Updated: March 16, 2011 
Pipes with patent number
1935 - 1954
 
PATENT BRUYERE
 1935
 
A: Bruyere
145: shape #
FABRICATION ANGLAISE
BREV.EN.SUSPENS
This stamping only lastened one year: 1935
• Value (Estate): unknown
DR R
 1936
DRR: Dead Root, Root Briar

PAT.N° 363582

Year suffix 16: 1920+16

According to its Patent #, this DR Root Briar has a inverted Vernon fitting.
• Value (Estate): 365,30 US $ • 252,40 €
PATENT SHELL
 1937
 
60/3: shape #

Patent N° 417574
(without ".../34")

suffix 17: 1920+17

• Value (Estate): 224.50 US $ • 158,50 €
 
U.S. PATENT
 1939
 
335: shape #
R : Root Briar
U.S. PATENT 1343253/20
ENGLAND19 : 1920+19

Weight: 30 grams
• Value (Estate): 350.00 US $ • 262,80 €
 
PROVISIONAL PATENT
 1939
 
No shape #

PROV. PAT N° 12505

PAT. N° 417574
Suffix 19 : 1920+19

The wind cap can be swiveled to the bottom of the bowl. This device corresponds to the atypical 12505 patent number.
• Value (Estate): 765.00 US $ • 622,40 €
 
PATENT BRUYERE
 1940
 
DUNHILL over LONDON
A : Bruyere
351: shape #

PATENT N° 197365
ENGLAND0: 1940+0
Value (Estate):128.50 US$ • 82,50 €
 
PATENT ROOT BRIAR
 1940
R: Root Briar finish
Dunhill
London


PAT. N° 417574
Suffix 0 : 1940+0

• Value (Estate): 306.00 US $ • 231.50 €
 
U.S. PATENT
 1940
 
483: shape # ('DON')
06: ?

ENGLAND0 : 1940+0

U.S. PATENT 1341418/20

• Value (Estate): 500.00 US $ • 395,80 €
 
PATENT (without date code)
 1941
 
R: Root Briar (after 1931)

No year suffix # *
PAT N° 1343253/20
(1927-1933, 1937-1941)

34 : Shape
* The Dunhill stamp inventory log shows receipt of this patent stamps whithout any date code in 1927 and 1941. Since this pipe is a ROOT BRIAR and given its patent number, it cannot be a 1927 pipe.
• Value (Estate): 172.50 US $ • 110,55 €
 
PATENT
 1942
 
39: shape #
R: Root Briar
ENGLAND2 : 1922, 1942 or 1952
PAT N° 417574/34
(1942-1954)
Value (Estate): 242.50 US$ • 155.70 €
 
PATENT ROOT BRIAR
 1944
32: shape #
R : Root Briar

ENGLAND4 : 1940+4
PAT N° 417574/34
White dot on a bone or a horn mouthpiece.
• Value (Estate): 129,61 US $ • 98,30 €
PATENT A
 1948
 
A: Bruyère
48: shape #

ENGLAND8 : 1928 or 1948
PAT N° 417574/34
(1942-1954)
Value (Estate): 305.00 US$ • 206,00 €
PATENT SHELL
 1950
 
DUNHILL SHELL
(4): Bowl size   R: shape
ENGLAND0 : 1930, 1940 or 1950
PATENT N° 417574/34 - ?
(1942-1954) 
Value (Estate): 112,00 US$ • 73,30 €
DR R
 1950
DR: Dead Root +R: Root Briar
B: grade
LBS: Letter shape code

PAT. N° 417574/34
ENGLAND0: 1950+0

It seems that this pipe is stamped with a "B" grade and simultaneously with an "R" holding for a Root Briar finish.
The DR letter grading was initiated in 1949.
The ROOT BRIAR stamping under DUNHILL was introduced in the 1950s and the "R" on the DR pipes with this finish will be discontinued then.
Consequently, this pipe illustrates one of the first attempts to grade a Root Briar DR.
The small square (left to the L of LONDON) was probably a help for the retailer to take a decision about the price.
• Value (Estate): 1,650.00 US $ • 1.295,34 €
 
ODA 841
 1950
ODA
841
: shape #
F/T: Fish Tail
No date code
PATENT N° 417574/34
Original amber stem
Despite the lack of the year suffix this pipe can be dated:
- The ODA 800 series were introduced in 1950.
- The patent 417574/34 stamping ran until 1951
- The DUNHILL SHELL stamping was replaced by DUNHILL SHELL BRIAR in 1951.
• Value (Estate): 1,038.00 US $ • 770,50 €
 
ODA 805
 1950
 
Three year suffixes:
ENGLAND0 2 3 : 1950+0
(0 suffix very week)

PAT.N° 417574/34
F/T: Fish Tail stem lip
This pipe (Skate shape) was crafted in 1950: LONDON is under DUNHILL and the first year suffix is 0. It took more than two years to sell.
• Value (Estate): 360.55 US $ • 253,80 €
ROOT SHELL (Prototype)
 1951
 
DUNHILL over ROOT SHELL
113: Shape #
2 (encircled): Bowl size
PAT N° 417574/34
ENGLAND1 : 1950+1
"C" stands for "Complementary"
This pipe is not stamped with a " T " , as on the regular "TANSHELL" production. It was an attempt to produce a natural sandblasted pipe and its name (Root Shell) was transient. Dunhill finally arrived at "TANSHELL" name later in 1952.
• Value (Unsmoked): 1525.00 US $ • 992,30 €
PATENT TANSHELL "LC"
 1953
The LC mythical shape, characterized by a "swan's neck" shank, generally was crafted in a SHELL or sometimes BRUYERE finish. This TANSHELL finish is extremely rare.
• Value (Estate): 2,375.00 US $ • 1 616,00 €
 
PATENT ROOT BRIAR
 1954
 
K: Letters shape code
4: Bowl size   R : Root Briar
ENGLAND4 : 1924, 1944 or 1954
PAT N° 417574/34
(1942-1954)
Root Briar > 1931
According to its year suffix and its patent N° this pipe could be from 1944 or 1954. But the group numbers (here 4) were inroduced in 1951. Thus 1954 remains the only possibility.
• Value (Estate): Unknown
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