Vintage Hummingbird Art Print Lily Hummer Jan Mintz Bird Flower 80s?

"Lily Hummer" Hummingbird Art Print by Jan Mintz No date 1980s / 1990s? Hand colored & initialed Approx Measurements: Artwork 6.5" x 8" Mat 8" x 10" Mat opening 4.75" x 6" I think the mat is acidic, but I'm not sure. Pre-owned. Sold w/ No Frame. Sold w/ original matting & foam board backing for protection. Print is moderately discolored where it was exposed to light through glass. You'll need to keep the same mat opening size for the discoloration not to show. Recommend a new non-acidic mat. Smoke-free, pet-friendly home. (On display) tags: vintage art bird hummingbird local artist