I am no expert, all I can say is with the platic inner lever they will be the lower models.
Chorus, Record, and possibly Athena ?? had aliminium inner levers on the modesl I saw.
Cheers
J.
They look like Athena circa 1995?
The pointy tops went in 1998. On later ones (1996 onwards) the groupset name was shown on the top of the lever just under the hood.