"PQ" = Premium Quality
NIB
NOS - boxes may be tattered
Etched Codes =
delta 1K1 = 1961
delta 3L1 = 1963
See pictures as they are part of the description
Tested on Tripplet E3444 Laboratory tester
Results =
1450/1400 micromhos
Min = 980
New = 1500 - +/- 10%
I do combine S&H