Ted, good ???
Basicly a Tam O Shanter (TOS) is LARGER in diamiter. ( a "full size" one is a balmoral on STEROIDS)
Here is my take on the subject.
Balmorals-
a. Military style are the smallest, 9-9 1/2" in diam. (refer to the upper left pic ( my 1960 "Berret") Note both the "modern US & Brit issue are sim.)
The upper mid. one is of modern Brit issue TOS, BUT I rate this as a Balmoral because of it's size (10")
b. Civilian style are a little larger, usually 10-11" ( the upper right one is 11"
Tam O Shanter
a. The lower left one (WPG TOS) measures 12 1/4"in diamiter ( about the smallest size, IMHO)
b. The lower right one is a "Traditional " style TOS measures 13 1/2"
I hope this helps
NOTE that I wear my US version with the flash/badge on the RIGHT & the Scot's styles on the LEFT.
Puffer
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