Lamberton, Minnesota. $20 1902 Red Seal. Fr. 639. The First NB. Charter #7221. PMG Very Fine 25.;This newly discovered one bank town of Lamberton $20 is now the seventh note reported to the census, with this being just the second red seal. The note is seen with excellent colors and paper originality with near prefect signatures considering the circulation. The other red seal $20 sold in a public auction in 2011 for an impressive sum of just under $11,000. If this note is not the finest known for the bank, it is most certainly very close.