Two amber P-lip from 1901

Two rather compact Peterson in their cases. Nevertheless they are as large as a Dunhill's group 4.

They have exactly the same shape.
Pipe length 9.8cm, Bowl height 4.1cm

Both pipes are from the same year: the band is sterling silver with Dublin Ireland hallmarks for 1901. Date letter F (see chart here) ▼

The original mouthpieces are examples of amber hand carved into a P-lip. ▼

As to the briar model, the right side of the shank is stamped with the name of the retail store (rare on Peterson's pipes): Watts, in Liverpool.
The inside of the case is labeled with the same tobacconist's name ▼

▲ The suede leather clad case intended for the briar pipe.
▼ The piece below is an excellent example of how a meerschaum colors, beginning at the shank and moving gradually up the bowl. (an other superb example here)

See also: Peterson's P-lip and its variants.