New England Grandfather Clock

We inherited a New England Grandfather clock . It was made in the mid 60s. It keeps perfect time. It is a Cotley design, or was named after a clockmaker from the past.

The cabinet (pine) was made in the USA and the clock mechanism was made in Germany. It is chain driven, tunes on the 1/4 hour, and bongs on the hour. Very pleasant.

All this historical information was in the clock. Other than that , there seems to be no information available. Is it a one of a kind or rare? Is it valuable and should it be insured?

If it is rare, what dollar value should be assigned ?

Thank you,

Gene