At the end of Series 1928 and beginning of Series 1934 Federal Reserve Notes, a light green ink was used for a short period of time. The ink was then changed to the dark green ink on subsequent notes.
Why are there no $1 Federal Reserve Notes? — The first issue of the $1 Federal Reserve Note was Series 1963! The $2 Federal Reserve Note wasn't issued until 1976 for the United States Bicentennial ($2 is 200 cents).
 | FR-1955L - Series 1934 $5 Federal Reserve Note, San Francisco, Julian - Morgenthau, Plate# G2/456, 39,324,168 printed Light Green Seal (LGS) — Early Series 1934 $5 Federal Reserve Notes were printed with a vivid light green seal (some call it an apple green seal), but later notes in the series were printed with a dark blue-green seal. For the San Francisco Federal Reserve District, serial numbers L01632856A through L12396000A have the light green seal. |
 | FR-2004B - Series 1934 $10 Federal Reserve Note, New York, Julian - Morgenthau, Plate# J25/260, S/N B32882050A, PCGS Choice New 63PPQ Light Green Seal (LGS) — Early Series 1934 Federal Reserve Notes were printed with apple green (light green seals), but the color was quickly switched to a dull bluish green. This note has a scarce micro-check number on the face (obverse side). This is a note from the Miami Beach Hoard. |
 | FR-2004F - Series 1934 $10 Federal Reserve Note, Atlanta, Julian - Morgenthau Light Green Seal (LGS) — Early Series 1934 Federal Reserve Notes were printed with apple green (light green seals), but the color was quickly switched to a dull bluish green. This note has a scarce micro-check number on the face (obverse side).
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 | FR-2052B - Series 1928 B Federal Reserve Note, New York, Woods - Mellon, Plate# A46/95 Light Green Seal (LGS) — Early Series 1928 A $20 Federal Reserve Notes were printed with a dark green seal, but later notes in the series were printed with a light vivid yellow-green seal (some call it an apple green seal). For the New York Federal Reserve District, serial numbers B24685189A through B30238010A have the light green seal. |
 | FR-2054D - Series 1934 $20 Federal Reserve Note, Cleveland, Julian - Morganthau, Plate# D5/220, S/N D05289316A, Light Green Seal (LGS) — Early Series 1934 $20 Federal Reserve Notes were printed with a dark green seal, but later notes in the series were printed with a light vivid yellow-green seal (some call it an apple green seal). For the Cleveland Federal Reserve District, serial numbers D00000100A through D09259559A have the light green seal. |
 | FR-2102B - Series 1934 $50 Federal Reserve Note, New York, Julian - Morgenthau, Plate# K1/83 Light Green Seal (LGS) — Early Series 1934 $50 Federal Reserve Notes were printed with a vivid light green seal (some call it an apple green seal), but later notes in the series were printed with a dark blue-green seal. For the New York Federal Reserve District, serial numbers B00000890A through B02693309A have the light green seal. Also, as a result of President Roosevelt's gold recall order of 1933, the obligation clause for the Series 1934 $50 Federal Reserve Note is changed to indicate the note is redeemable in "lawful money". |
 | FR-2151H, KL2779 - Series 1928 A $100 Federal Reserve Note, Light Green Seal (LGS), St. Louis, Woods - Mellon, Plate# K6/28, S/N H00491609A, 749,544 printed for the St. Louis Federal Reserve District |
 | FR-2152B - Series 1934 $100 Federal Reserve Note, New York, Julian - Morganthau, 3,086,000 printed Light Green Seal (LGS) — Early Series 1934 $100 Federal Reserve Notes were printed with a vivid light green seal (some call it an apple green seal), but later notes in the series were printed with a dark blue-green seal. For the New York Federal Reserve District, serial numbers B00135280A through B01642495A have the light green seal. Also, as a result of President Roosevelt's gold recall order of 1933, the obligation clause for the Series 1934 $50 Federal Reserve Note is changed to indicate the note is redeemable in "lawful money". |
 FR-2201D | KL-2961 Light Green Seal (LGS) | Series 1934 $500 Federal Reserve Note, Cleveland, Julian - Morgenthau, Plate# A1/7, S/N D00009889A, 39,000 printed for the Cleveland Federal Reserve District |
 FR-2211L | KL-3008 | Series 1934 $ 1,000 Federal Reserve Note, San Francisco, Julian - Morgenthau, Plate# A1/1, S/N L00015307A, 90,600 printed for the San Francisco Federal Reserve District |
| I wish these notes were in my collection! | |
 | FR-2221J - Series 1934 $5,000 Federal Reserve Note, Kansas City, Julian - Morganthau, 2,400 printed Light Green Seal (LGS) |
 | FR-2231J - Series 1934 $10,000 Federal Reserve Note, Kansas City, Julian - Morganthau, 1,200 printed Light Green Seal (LGS) |
