I have a 12" woofer with what looks like a maybe a 2" voice coil. It has a nice caste frame too.
It was made by Eminence and has a model number LAB12 on the label.
The parameters are:
Fs 22.2973
Diameter 254.0000
Re 4.1000
Rms 3.2060
Qms 5.8742
Qes 0.3079
Qts 0.2926
Cms 0.3790
Mms 134.4264
BL 15.8355
VAS 135.8834
dBSPL 88.9176
L 1kHz 1.4597
L 10kHz 0.8016
First $50 takes it (plus shipping).