Colorado Code
Part 2 - Collection of Items - Depositary and Collecting Banks
§ 4-4-206. Transfer Between Banks

Any agreed method that identifies the transferor bank is sufficient for the item's further transfer to another bank.
Source: L. 94: Entire article amended with relocations, p. 887, § 2, effective January 1, 1995.
This section is designed to permit the simplest possible form of transfer from one bank to another, once an item gets in the bank collection chain, provided only identity of the transferor bank is preserved. This is important for tracing purposes and if recourse is necessary. However, since the responsibilities of the various banks appear in the Article it becomes unnecessary to have liability or responsibility depend on more formal indorsements. Simplicity in the form of transfer is conducive to speed. If the transfer is between banks, this section takes the place of the more formal requirements of Section 3-201.