The dots

Three dots
▲ (Left side) ◊ Bill Sargent, Topeka. KS. ◊ Logo: 3 aligned dots, the last is faded.
Artisan: Bill Sargent († in the 80s) pipemaker, reparman, and tobacco shop owner in Topeka, Kansas.
Montreal, Quebec

▲ ◊ (left) Blatter Montreal, Select (right) Robert Blatter (bottom) 128-93, B.A. PHILO 93 ◊ ▲
This is the only Blatter pipe in the world with three dots.
▲ 3 dots (horizontal)
▲ 3 dots (vertical)
▲ 3 dots: 1 big & 2 little (triangle)
▲ 3 dots (triangle) (Underside) ◊ 388 2, Brigham, Canada ◊
Pipes with three aligned dots on the stem correspond to the 6xx numbered shapes (600 series).
Those with the three dots in a triangle layout correspond to the 300 series
Dartmouth, MA

▲ ◊ Kiess Patriot USA, SM 2004 (Carved in 2004) ◊
Artisan: Robert C. Kiess is a physician, Doctor of medicine.
Other physician carving pipes :
Daniel Jud
See also (same logo):
John Surrey
Artisan: Ron Fairchild
~ 100 pipes / year
▲ ◊ John Surrey L.T.D. Golden Burl ◊
John Surrey, Ltd.,
5th Fifth Avenue New York NYC, NY
Kayne
Long Island

▲ (Left side) ◊ Rossi , Spiral, Made in Italy ◊
▲ ◊ Perri ◊
▲ ◊ Perri ◊
Artisan: Paul Perri (retired 1997 in Hawai)
▲ (Left side) ◊ La savinelli, Giubileo d'Oro ◊
(Right side) ◊ [Shield] 624 KS, Italy ◊
▲ (Underside) ◊ Wilshire, Three Dots, 10 ◊