These two early Luxembourg stamps feature the crowned coat of arms of the Grand Duchy of Luxembourg.

• The 4c olive-brown issue bears an elegant “Officiel” overprint in script, marking it for official government use.

• The 1c grey stamp is a surcharge type, revalued to 12 centimes with bold black overprint “LUXEMBOURG / 12,” a typical practice during postal rate changes in the early 20th century.

Both belong to the Arms definitive series, showcasing Luxembourg’s heraldic lion and royal crown — key symbols of national identity.