You will notice the model 4002 has a slightly irregular surface texture.
SOME MEMORIES 1901-1935 by George G. Harrap, 1st Ed. Books & Publishing
A nice touch on model 4776 is the decorative endpapers in a pattern.
Witchcraft Magic and Alchemy ~ Givry OCCULT SORCERY DEMONOLOGY GRIMOIRE KABBALAH
The hinges on this 0794850707 are still tight and sturdy.
