SNIP
Hmmm. I'm reluctant to be disagreeing with Scott, but I wouldn't be jumping to
alcohol so quick, in case it's a shellac finish. After Murphy's and lukewarm
water, I'd move to varsol or similar petroleum product. Paint thinner or turps
if you have it. Start with a soft cloth.

END Snip

Yes, I have five of them full of books and ALL have shellac finishes.

J