Hopkinson submitted another bill on June 24 for his "drawings and devices." In this second letter, Hopkinson did not mention designing the flag of the United States. Instead, the first item listed was "the great Naval Flag of the United States" along with the other contributions. This flag with its red outer stripes was designed to show up well on ships at sea. A parallel flag for the national flag was most likely intended by Hopkinson with white outer stripes as on the Great Seal of the United States and on the Bennington flag, which commemorated 50th anniversary of the founding of the United States (1826). Ironically, the Navy flag was preferred as the national flag. For the various designs, Hopkinson asked for cash in the amount of £2,700. The Auditor General, James Milligan, commissioned an evaluation of the request for payment. The report from the commissioner of the Chamber of Accounts said that the bill was reasonable and ought to be paid. Congress used the usual bureaucratic tactics of asking for an itemized bill for payment in cash. Hopkinson requested £9 for the naval flag. A committee investigated Hopkinson's charges that his payment was being delayed for arbitrary reasons. The Treasury Board turned down the request in an October 27, 1780, report to Congress. The Board cited several reasons for its action, including the fact that Hopkinson "was not the only person consulted on those exhibitions of Fancy were incidental to the Board (among them, the U.S. flag, the Navy flag, the Admiralty seal, and the Great Seal with a reverse), and therefore cannot claim the sole merit of them and not entitled in this respect to the full sum charged." The reference to the work of others is most probably a reference to his work on the Great Seal. For that work, he was not the only contributor, but served as a consultant to the second committee that worked on the Great Seal of the United States. Therefore, he would not be eligible to be paid for the Great Seal. Furthermore, the Great Seal project was still a work in progress. No known committee of the Continental Congress was ever documented with the assignment to design the national flag or naval flag. Hence, there was no evidence of collaboration with others on Hopkinson's flag design.