I'm sure someone here actually knows the answer to that and can just say "yes" or "no" to the lacquer question. But, acording to Stew-Mac a simple test is to dip a cotton swab in some acetone and touch the finish in an inconpicuous and safe place. Lacquer will almost immediately soften and become tacky. Let it dry and polish the spot and you have an answer and are as good as new again.
Now, before doing this I need to say that all the finishes I've tested were Poly and the stuff had no effect whatever. So, be careful.