Here are the pics
Cab1
Speaker Codes - 2x T1221 / HP177
2x T1221 / LF16
Not sure about this one. THe cab itself seems consistent with the other in being mid 70's but the top speakers date to '81. I suspect its mid 70's with the top speakers being replaced at some point
Cab2
Speaker Codes - 1x T1221 / AF10N
3x T1221 / AF12N
Everything seems consistent with this cab being from early 1973.
The codes on the frames were difficult to decipher in several cases. I could not find any codes on the cones themselves
Cab1
Speaker Codes - 2x T1221 / HP177
2x T1221 / LF16
Not sure about this one. THe cab itself seems consistent with the other in being mid 70's but the top speakers date to '81. I suspect its mid 70's with the top speakers being replaced at some point
Cab2
Speaker Codes - 1x T1221 / AF10N
3x T1221 / AF12N
Everything seems consistent with this cab being from early 1973.
The codes on the frames were difficult to decipher in several cases. I could not find any codes on the cones themselves