Circa 1700, 30 hr. Grandfather clock

by Sally
(Washington state)

I received this Grandfather clock from my mother who received it from her father. My Grandfather purchased this clock from an antique clock store in London in the early 1960's. Then brought his extensive collection of clocks to the states, where in his retirement, he ran a clock repair store. There is a typed card that I believe either came from the antique clock store or my Grandfather typed up, it says the following...

"Mark Metcalf

From Askrigg. 1710 - 1776. This clock was made about 1720. Because of the engraving on the face, the date can be confined to the first 1/4 of the century.
Has: Brass face, Calendar dial, 30 hour mechanism - must be wound every day."

I have had this clock since the early 1990's, and although I have been told it is in working order, the clock face is so delicate & in need of cleaning that I am afraid to do anything but let it sit.

I have been trying to learn more about the clock but do not know where to start before investing money in appraisals and repairs if needed.

Would love your feed back.