They use both. Smaller frame sizes typically have glass front glazing, while larger sizes commonly use clear plastic (acrylic/plexiglass) for the front.
Yes. Most mint green frames support both horizontal (landscape) and vertical (portrait) display. Tabletop models that include an easel are usually stable in either orientation.
Several of the frames are described as made in the USA and hand-assembled. Individual product listings should be checked for exact country-of-origin details.
Frame bodies are made from molded wood and molded resin. Front glazing materials include glass and acrylic (plexiglass).
The wooden mint green frames use a 1.5-inch molding profile and feature a distressed finish as part of the Jasper-style design.