Claude
The cachet features a minimalist line-drawing of a hummingbird in flight with stylized wavy lines suggesting motion, printed in black ink on white envelope. The left portion contains detailed typeset technical information about the stamp including designer, printing process, colors, and dimensions. The stamp is the 29-cent Calliope Hummingbird from the 1992 Hummingbirds booklet series, depicting a colorful illustration of the bird with red columbine flowers. The postmark is a machine cancel reading 'June 15, 1992, Washington, DC 20066' with 'FIRST DAY OF ISSUE' text.
Mistral
The cachet features a minimalist black line-drawing of a hummingbird in flight with stylized motion lines. The 29-cent stamp depicts a Calliope Hummingbird with red columbine flowers. The postmark is a circular first day of issue cancellation from Washington, DC. The cover includes detailed philatelic specifications printed on the left side, noting the stamp's design, printing process, colors, and dimensions.
(The automatic summaries sometimes misidentify the postmark as part of the cachet artwork.)
