Short history of the brand.
Brand founded in 1863 by Frederik Charatan. When his father retired in 1910, Reuben Charatan took over the family business.
All the pipes were handmade until 1973.
The brandname has been overtoken by Dunhill in 1978 and sold in 1988 to James B. Russell Inc. (NJ, USA). During the period 1988-2002 Charatans were crafted by Butz Choquin in St Claude (France).
Dunhill re-purchased Charatan brand name in 2002 and Colin Fromm (Invicta Briars, Castleford) follows up on freehand production.

▲ The Coronation grade was introduced between 1965 and 1979. The full script marking (Made by hand in the city of london) was the one used during this period.

Hallmarked gold band: stampings of the leopard head, 325 (9 Karat gold), and "FC" (Frederick Charatan).
Pipe dating from 1969.

"CROWN ACHIEVEMENT" line is on the top of Charatan grading (about 20 grades) just after the extremely rare "Suma cum Laude".
Retail price (in 1970 catalogue): 1500 US$

▲ After 1965, some Executive had a carved top to resemble plateau briar (see detailed view)

This is typically a pipe carved in France. Note the slightly different C and P linking, the "of London" instead of "London England" and a "France" stamping under the stem.

L in circle denotes a pipe imported into USA by Lane Ltd between 1955 and 1988.
The "DC" stamping after 483 (shape #) was introduced when Dunhill took control of the company in 1979. DC means "Double Comfort" saddle bit.

Family era : period 1910 - 1960
Shape #58 called "Newmarket"

▲ Lane era: period 1955 - 1988

The Underboar line has been made for a period from the 1920s to WWII. Because of the system equipping these pipes, Charatan gave it the catchphrase "the pipe that cleans itself". (See document)