Hi, I've just come across your post.The chest sounds fascinating.My ancestor was Rev Alexander Moncrieff of Culfargie.He was known as "old Culfargie" according to some old texts and depending on the age of your chest, it could have something to do with him or his descendants.
Born 1695, he inherited the lairdship of Culfargie but also entered the ministry and became Minister at Abernethy. He was one of the 4 ministers that seceded from the established Church of Scotland. Please visit my family tree site to read a lot about him.There is also a picture http://paterson.familytreeguide.com/getperson.php?personID=I1047&tree=T1http://paterson.familytreeguide.com/getperson.php?personID=I1047&tree=T1
I'd love to see a photo of the chest - if poss could you email one to email@example.com?