Sandblasted pipes markings
(Shell, Tanshell, ...)
U.S.PATENTS
1341418/20&1343253/20
U.S.PATENTS
1341418/20&18611910/32
PAT.N° 209845/21
CANADIAN PATENTS 209845/21 & 197365/20
PAT. Nos 158709/14 & 209845/21
PAT N° 209845/21 & 197365/20

First SHELL BRIAR
PAT.N° 1341418/20
PAT.N° 119708/17&116989/17
PROV.PAT.15114/34
PAT.N° 1130806/15
& 1341418/20
U.S.PATENT
1341418/20
PATENT
1341418/20


ODA 800 series
First TANSHELL
Apparition of the white spot

DUNHILL'S "SHELL" MADE IN ENGLAND
PAT NO. XXXX 1 ... 9 0 11 ... 14
PAT N°
119708/17
119708/17.
BREV N°491232/18
PATENT MARCH.9.15
& 1341418/20
PAT.APP.FOR
PATENT MARCH.9.15
MADE IN ENGLAND 15 16 ... 19 0 1
PAT NO. XXXX
PAT N° 417574
MADE IN ENGLAND 2 3 ... 9 0
PAT NO. XXXX
DUNHILL SHELL
DUNHILL SHELL
PAT N° 417574/34
MADE IN ENGLAND 1 2 3 4
PAT NO. XXXX
DUNHILL
SHELL BRIAR
PAT N°5861/12 119708/17
PAT N° 119708/17 5861/12
DUNHILL
SHELL BRIAR
MADE IN
ENGLAND 5 6 ..... 9 0
Not allways underlined
DUNHILL
TANSHELL
MADE IN
ENGLAND 1 2 .. 4 5 ... 9 0
MADE IN
ENGLAND 11 12 13 14
MADE IN
ENGLAND 15 16 17
MADE IN
ENGLAND 18 19 ... 38 39
Not allways underlined

4 digits shape number
5 digits shape number
First RED BARK
RED BARK discontinued
First COLLECTOR
First CUMBERLAND
First COUNTY
First SHILLING / RING GRAIN
MADE IN
ENGLAND 00 01 02 03 ...
DUNHILL
(In oval)

 
The White Spot
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