below the apostrophe. The black and pearl marble coloring must have followed very shortly on the heels of the jade green color. Sheaffer "lifetime" flat-top pens were also very handsome. At this time, Sheaffer did not make matching pen and pencil sets, but similar colors were available. The white dot, indicating the lifetime guarantee, was set into the top of the pen cap.
Titan pencils are 5 & 1/4 inches with a rear-drive mechanism, 1.1 mm lead, and ball-end clip. They have gold-filled trim. On the top, the mark (in all caps) reads: Sheaffer's, Lifetime, Gold Filled, Pat- Pat Pending.
They continued to be made until the "Balance" design came along in 1929. Above, you can see the two slightly different clips. The jade pencil is the earlier.
The jade pencil 's clip has slightly different lettering, and the cap is a fraction shorter than the black and pearl pencil's cap. To this longer cap, they added the words "Made in the USA."
Titans were six formidable Greek gods, most likely the namesakes of this pencil, but it is also the name of Jupiter's largest moon, the one that looks to be made of marble.