Go ahead and give the installer a call. FIRST, I'd ask if he/she can tell you who made it, and where it can be bought. Tell him you have a sister in Ohio or somethin' and she just loved it! Then, contact the mfgr. They may tell you to ctc the installer but that's OK. Just call him back and tell him you'd like to have it removed, yet saved.
My best to ya and hope this helps. PS: Make sure you're SURE of the 'surface' to which it's glued. Plaster, drywall, etc., etc..