Dear …
On behalf of __(Name of Organization)__, please allow me to express our gratitude to you for your thoughtful gift. When we received the __(type of gift)__, we were both surprised and absolutely thrilled! It is __(a wonderful expression of your kindness/so beautifully preserved/etc.)__. An object so __(sacred/beautiful/etc.)__ will most definitely be proudly displayed in our __(hall/church/center/etc.)__.
I can’t think of anything more __(fitting/perfect/etc.)__ to put on display in our __(hall/church/center/etc.)__. Thank you so much, __(Name)__. I know that so many of our members will also greatly appreciate it. It really is a wonderful gift to us all!
Sincerely,