Not that it really matters, but it's nice to know. I just recently picked up a custom made Tweed 4x12 made of birch I believe. Very heavy wood! It has 4 Vintage 30's in it. The date codes on the speaker frame per the Celestion site say March 30, 1999. Anyone know what the origin may be of these? UK or China? I don't really know when they started mfg'ing in China. Thanks in advance!