Cunabula
Cunabula (ku*nab"u*lȧ) , noun, plural
[Latin, a cradle, earliest abode, from cunae cradle.]
1.
The earliest abode; original dwelling place; originals; as, the cunabula of the human race.
2.
(Bibliography) The extant copies of the first or earliest printed books, or of such as were printed in the 15th century.