To Get:

23-031E2             VT100 terminal ROM
23-051L1             TQK50 Rev.D1 E3 ROM
23-065L1             TQK50 Rev.J1 E3 ROM
23-077E5             KDJ-11B (PDP11/73+) boot Version 6
23-078E5             KDJ-11B (PDP11/73+) boot Version 6
23-094E2             VT100 extra chargen
23-095E2             VT100 extra chargen
23-096E2             VT100 extra chargen
23-097E2             VT132 extra chargen
23-098E2             VT132 extra chargen
23-139E2             VT100 terminal board ROM
23-140E2             VT100 terminal board ROM
23-170E5             TQK50 ROMs, rev.1
23-171E5             TQK50 ROMs, rev.1
23-180E2             VT132 terminal board ROM
23-180E5             TQK50 ROMs, rev.2 (C1)
23-181E2             VT132 terminal board ROM
23-181E5             TQK50 ROMs, rev.2 (C1)
23-183E2             VT132 terminal board ROM
23-453E6    	     TK50Z-GA ROM
23-453E4    	     KDF11-BJ (uPDP11/23) boot, last release
23-454E4    	     KDF11-BJ (uPDP11/23) boot, last release

What is:
23-126E4
23-127E4
23-398E4
23-399E4