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The cloverleaf logo: the round logo (black cloverleaf in white circle or

white cloverleaf in black circle ) was first used in 1937.

Up until the late 40's this logo was used on all of the upper grades pipes.

The concomitant use of the plain white cloverleaf and the disk inlaid logo continued untill the early 80's.

Up until the late 1940's/early 50's, the logo was on top of the stem.

After that the logo was moved to the side of the stem (exceptions exist).

The code: see comments about "President" pipe

This pipe is marked with "Drinkless" on the shank, on the stem and on the stinger.

It doesn't have the KB&B shamrock logo nor any "Kaywoodie" stamping.

Nevertheless its caracteristics allow to identify it as an early Kaywoodie:

• A 2 digits shape number (17 = Dublin): period 1924-1929)
• A push tenon: pipe manufactured prior to 1929

The "Premier" line was produced only during a year: 1928

From 1924 to 1929 (about) Kaufmann Brothers & Bondy (KB&B) stamped

a 2 digit code on the pipes (29 in this case) to indicate their shape.

The fact this pipe dates from this period is also confirmed by a push stem.

It illustrates a test period coming first to a Kaywoodie line and followed by the Kaywoodie brand.

The first Super Grains appeared in late 1931 or early 1932.

They are the only pipes Kaywoodie produced with the shamrock inlaid in the shank and not on the stem.

Shank embedded logos were stoped by 1938.

Differentiate an early Super Grain from a post WWII Super Grain.

The shape called "President" is a Kaywoodie's distinctive production. It has never been copied.

Until late 1930's pipes were stamped with a 4 digit code (this pipe: 7793).

• The first 2 numbers (77) designate the style or finish.
• The last 2 are the shape numbers (93).
• The numerical code may be reinforced by a letter for variants.

Thus the small "President" pipes are stamped 93S while the larger bear a 93L (see also this Super Grain pipe).

Later Kaywoodie will cancel the 2 first style/finish numbers keeping the

2 last shape numbers and the letter for variants (i.e. Allbriar or Connoisseur).