Doctor Courteau identified 10 different varieties of the
Large Ground / no period grouping. These are easily broken down
into two catagories dependent upon the upper section of the Garder
rim (the area above the letters DEI of CONCORDIA).
The rim is complete on varieties 9, 9b, 9c. 9d, 9e, and 9i.
The rim is broken on varieties 9a, 9f, 9g, and 9h.
The token in the above photo is of the broken rim variety.
The next area of concern is the lower right leafless stem of the Shamrock.
Variety 9a shews a light fork to the terminal of the stem.
Variety 9f shews a large fork, with the upper part the longer.
Variety 9g shews a short and lightly cut fork.
Variety 9h shews a light fork.
Not much help, thus we continue...
The letter 'S' in 'BAS' is:
Variety 9a - Perfect.
Variety 9f - Inverted.
Variety 9g - Inverted.
Variety 9h - Inverted.
ergo...yours is Courteau variety 9a having a rarity factor of 1 (common).
grade F-15. The buttons of the Jacket are sufficient to rate any higher.
doug