What is the oldest known #1 Serial Numbered Note for National Bank Notes?

[ThunderRust]

Does anyone know what the oldest known serial number 1 national bank note is? It would have to be from the original series 1863 national bank note series but is it 1863, 1864, 1865 etc based on the bank's charter date. Also, what denomonation?

I have been doing some research but am having trouble locating the answer. The 1863 original series notes were released to the public in December of 1863, but a few November 1863 notes are known to exist. Is there a number one serial known from that year or would the oldest know be from years shortly thereafter?

-Ryan

[ThunderRust]

After more research, the earliest serial # 1 known on the last census is Charter # 26 for the FNB of Washington, DC. 

Can anyone share any known information that may change this assumption?

Thanks!