[Your letterhead, if desired; if not, your return address]
[Date of letter-month, day, and year]
[Recipient's first and last names]
[Street or P.O. box address]
[City, State ZIP code]
Dear [recipient's name]:
It was so wonderful to receive the framed artwork that you sent to our business in honor of our grand opening and new offices. Thank you for this generous gift. The artwork looks beautiful in our lobby, and I hope you will visit our offices soon to see where we have placed it.
Again, thank you for your generosity. It means a great deal to us.
[Sender's first and last names]