2021 Colorado Hairstreak Butterfly Non-Machineable Surcharge Stamps Self-Adhesive Sheet for Square Envelopes

The Colorado hairstreak butterfly graces the eighth non-machineable butterfly stamp for use on irregularly sized envelopes, such as square greeting cards, invitations, or announcements. The stamp art was digitally created using images of preserved butterflies as a starting point. The result is a highly stylized, simplified image of a Colorado hairstreak rather than an exact replica.