Claude
The cachet features a line-drawn hummingbird in flight with wavy lines suggesting motion, printed in simple black ink on white envelope. The stamp depicts Costa's Hummingbird (USA 29 cents) showing the bird perched near red tubular flowers, printed in photogravure with rich colors. The postmark is a machine cancel dated June 15, 1992, Washington DC 20066, with 'FIRST DAY OF ISSUE' text. The left portion of the cachet contains extensive technical philatelic information about the stamp series, noting this is cover #3 of 10.
Mistral
This First Day Cover features a black line-drawn hummingbird in flight with motion lines on the left side of the envelope, representing the cachet artwork. The stamp, positioned on the right, depicts a Costa's Hummingbird perched near vibrant red tubular flowers, printed in rich photogravure colors including yellow, magenta, cyan, brown, green, and black. The postmark is a circular, hand-stamped cancellation with the text 'FIRST DAY OF ISSUE' and the date 'June 15, 1992', clearly centered over the stamp. The printed text provides extensive philatelic details about the stamp's design, printing process, and dimensions.
(The automatic summaries sometimes misidentify the postmark as part of the cachet artwork.)
