Between 1882 and 1920 Liberia made available the following categories of postal stationery for
surface mail: envelopes, newspaper wrappers, letter sheets, post cards, post reply cards,
and registered envelopes. From 1948 on, Liberia has issued two categories of airpost stationery:
air envelopes and air letter sheets (aerogrammes).
Numbers and valuations are from Shoemaker (2012): Liberian Postal Stationery.
Price ranges for “unused - used” are coded as follows:
| Abbr. | Value | Abbr. | Value | |||
|---|---|---|---|---|---|---|
| “C” (Common) | < $25 | “R” (Rare) | $100 to $249 | |||
| “S” (Scarce) | $25 to $50 | “RR” | $250 to $499 | |||
| “VS” (Very Scarce) | $50 to $99 | “RRR” | $500 to $849 | |||
| “NV” (No Value) | worthless | “RRRR” | $850 and above |
