A word related to broker/representative beginning with C

An art gallery can hold your art on consignment.

Here’s an example (shouting in the original, unfortunately):

  • SELL YOUR ARTWORK BY CONSIGNMENT Cooks Hill Galleries

Here’s the definition:

on consignment : shipped to a dealer who pays only for what is sold and who may return what is unsold - MW

The gallery sells the item as, in a sense, your agent or representative.