Vintage Print Serenity

When I bought it many years ago, the glass was soiled on the inside. I took it apart to clean and I seem to remember it being called serenity. I really don't want to disturb again, although the backing nails are loose and it will be necessary to do some maintenance. The back has a Lambert Products stamp. It is 10 x 12 inches. The print has the artist's name in the corner, but I can't tell what it says. There are no stains, rips or tears. The frame shows age wear and will need a bit of tightening, although it appears stable enough hang as is, but would recommend it be taken care of for the future. There is a lot of glare and reflection in the photographs that may appear as damage, however, there is no damage to the print or matting. I will be happy to answer any questions regarding the condition or provide additional photographs. I need your zip code to calculate the postage.