1992 Minerals Issue - Four 29¢ Stamps

The GAMM cachet features the word 'MINERALS' in large teal vertical text on the left side, accompanied by a teal engraving-style illustration of mineral crystals/rocks. Explanatory text in teal describes Azurite as a common source of copper often found associated with Malachite. The four 29-cent 'Minerals USA' stamps depict Azurite, Copper, Variscite, and Wulfenite minerals against teal backgrounds. The machine cancel from Washington, DC dated September 17, 1992 is partially obscured by the stamps, with 'FIRST DAY OF ISSUE' printed in black to the right.

This First Day Cover features a cachet with teal-colored illustrations of mineral crystals and explanatory text about Azurite and its association with copper. The cachet artwork is positioned on the left side of the envelope. The cover includes a block of four 29-cent stamps depicting Azurite, Copper, Variscite, and Wulfenite, each labeled with their respective names. A circular postmark from Washington, DC, dated September 17, 1992, is clearly visible, canceling the stamps. Additional text on the envelope reads 'FIRST DAY OF ISSUE' and includes the cachet maker's name, 'GAMM 1992,' along with the ZIP code '20066.' The cover is in excellent condition with clear, legible details.