Le Roy and Ballard printed two books for the mandore in the sixteenth-century, but both are now lost. No other printed works are known, but both Virdung and Agricola mention and diagram a small four-course instrument similar to the mandore called a "quintern." In the Latin translation of Virdung 1511, Luscinius labels this instrument the "lutina." There are three possible manuscript sources from the sixteenth century and quite a few manuscript sources from the seventeenth and eighteenth centuries, as well as a few printed books.
The most unique aspect about this instrument, generally in a combination of fifths and fourths such as c-g-c'-g'. Later instruments had five courses: c'-f'-a'-d"-g" or with various scordature.
Brunet 1578 [LOST]
Le Roy 1585 [LOST]
D-Ngm Ms. 33748, V [c1615]
D-Us Ms. Smr Misc. 132 Kapsel [1625-1630]
D-Us Ms. Smr Misc. 133a [1625-1630]
D-Us Ms. Smr Misc. 133b [1625-1630]
GB-En Ms. Adv. 5-2-15 [1625-1635]
D-Us Ms. Smr Misc. 132 (Tresor) [c1626]
D-Us Ms. Smr Misc. 239 
GB-Ob Ms. Mus. Sch. C. 94 [1660-1685]
US-R Ms. Vault M.125 
GB-Och Ms. Mus. 1187 [c1695]