With the advice of ChibiM, I opened another pack of eight, found that once again all eight tested exactly 1.27 v., and put the first four on ‘discharge’ mode right out of the pack.
After 150 minutes of discharge at 500 mA, the discharge stopped at 1.20 v.
Discharge readings were: 1146 mAh, 1153, 1138, and 1145.
After almost 13 years, these cells are still at roughly 60% capacity.
The last four are now being discharged in similar fashion.