The following tailoring patterns were not sold on merchants prior to September 1999:
- Mask
- Belt
- Cloak
- Bracers
- Shoulders
The only patterns available seem to have been:
Cap, Gorget, Tunic, Sleeves, Gloves, Pants, and Boots. (the "standard seven")
Sources:
Evidence they were missing:
https://groups.google.com/g/alt.game...m/q9f2xCBfuMcJ
https://groups.google.com/g/alt.game...m/C9f8cBxe_BIJ
https://groups.google.com/g/alt.game...m/8jF1NmwLFicJ
Patch where they were added (Sept 13/14th, 1999):
https://groups.google.com/g/alt.game...m/yp9GcKtNaRoJ