A very large ten foot long  sheet of paper .

Full sized plan,  on thick paper. 

Here are the specs:

Italian Harpsichord after Allessandro Transuntino 1531 ~ from the Royal College of Music London.  Range GG/BB -c''' short octave.  Measuring 88" in length,  31" wide and 8" deep.

Shipped inside a sturdy tube see photos plz.