Huge lot of GURPS books softcover.

Here's the #s you will get

6600 Gurps traveller science fiction in the far future 2nd edition.
6619 GMs Screen
6018
6040
6404
6405
6505
6511
6522
6524
6601
6603
6604
6604
6605
6606
6607
6608
6609
6610
6614
6615