It has been reported that Marco Polo may have introduced Pasta to the
Venetians, having sampled it on his travels in China.

Assuming this to be true, how would this new food have been
'marketed'?

Thank you, megagaga-ga,

As requested, I am reposting my comment as an answer: 

Unfortunately, the assumption is flawed: 
 
"Etruscan archaeological findings, mainly in Cerveteri (near to Rome),
display stucco relieves of several tools used for home pasta-making.
They were pasta ribbons, called lágana by the Romans, from where the
present name lasagna comes. Apicio, roman writer of the 1st century
a.C. describes lágana in its book De re coquinaria."
http://www.professionalpasta.it/dir_9/1_whoinv.htm 
 
"In his satire VI, Book I, line 115, Q. Horace Flaccus (65 BC- 8 BC)
describes his own frugal supper: "[…] inde domum me ad porri et
ciceris refero laganique catinum" (and so I come home in the evening
to eat a bowl of leaks, chick peas and lagane). In his Lexicon totius
latinitatis, Forcellini (1688-1768) explains that lagane are thin
strips of semolina and water, cooked in a fatty broth and seasoned
with cheese, pepper, saffron and cinnamon."
http://www.professionalpasta.it/dir_9/c_cron_2_1.htm  
 
"Marco Polo returns from China; among the many wonders he has seen
there, he mentions lasagne made with "farina di alberi, che sono molto
buone" (tree flour, which are very good). To dispel the myth that
pasta originates in China, we add that he also wrote "buone quanto
quelle che ho mangiato tante volte in Italia" (as good as the ones I
have tasted many times in Italy). In other words, lasagne are
mentioned in Il Milione probably because Marco Polo was astonished to
find in such a far away land a food so similar to the one in his
native country." http://www.professionalpasta.it/dir_9/c_cron_2_2.htm

Information from the Professional Pasta web site "an integrated
communications project on the international scale dealing with pasta
and every other activity involved in its production, distribution and
consumption"

Search strategy: "Marco Polo", pasta, China

Perfecto!

Absolutely al dente.

Unfortunately, the assumption is flawed:

"Etruscan archaeological findings, mainly in Cerveteri (near to Rome),
display stucco relieves of several tools used for home pasta-making.
They were pasta ribbons, called lágana by the Romans, from where the
present name lasagna comes. Apicio, roman writer of the 1st century
a.C. describes lágana in its book De re coquinaria."
http://www.professionalpasta.it/dir_9/1_whoinv.htm

"In his satire VI, Book I, line 115, Q. Horace Flaccus (65 BC- 8 BC)
describes his own frugal supper: "[…] inde domum me ad porri et
ciceris refero laganique catinum" (and so I come home in the evening
to eat a bowl of leaks, chick peas and lagane). In his Lexicon totius
latinitatis, Forcellini (1688-1768) explains that lagane are thin
strips of semolina and water, cooked in a fatty broth and seasoned
with cheese, pepper, saffron and cinnamon."
http://www.professionalpasta.it/dir_9/c_cron_2_1.htm 

"Marco Polo returns from China; among the many wonders he has seen
there, he mentions lasagne made with "farina di alberi, che sono molto
buone" (tree flour, which are very good). To dispel the myth that
pasta originates in China, we add that he also wrote "buone quanto
quelle che ho mangiato tante volte in Italia" (as good as the ones I
have tasted many times in Italy). In other words, lasagne are
mentioned in Il Milione probably because Marco Polo was astonished to
find in such a far away land a food so similar to the one in his
native country." http://www.professionalpasta.it/dir_9/c_cron_2_2.htm

tehuti

You are truly brilliant!

Please post your comment as an answer.

Many thanks.