Citadel's4305 Harlequins series was shown in the "1989 Catalog Part Two". [1] All of these models were from the RTB6 boxed set (18/18). The figures were all sculpted by Jes Goodwin.
4305 Harlequins
430501 Harlequin
430502 Harlequin
430503 Avatar
430504 High Avatar
430505 High Warlock
430506 Warlock
430507 Death Jester
430508 Solitaire
430509 Harlequin
430510 Avatar
430511 Harlequin
430512 Harlequin
430513 Harlequin
430514 Warlock
430515 Harlequin
430516 Death Jester
430517 Harlequin
430518 Death Jester
References
[1], SoL, "Citadel Miniatures Catalogue Part Two", (1989), page 4305