I have two of these and always thought them an interesting slice of old fashioned army traditions. I don't know what the modern versions look like but the two I have are both from the reign of George VI.
One I have had for a while is for an officer of the RWF. It came unframed and has a notice of his regiment on the reverse.
From the gazette,
notice of his commission
https://www.thegazette.co.uk/London/...upplement/3967
R.W. Fus.
The undermentioned Cadets to be 2nd Lts., 3rd
June 1945"- — •
14430973 Thomas David LEWIS (352305).
https://www.thegazette.co.uk/London/.../3854/data.pdf
ARMY CADET FORCE.
Cornwall.
ILt. Thomas David LEWIS (352305) (R.W.F. Emerg.
•Commn.) to be Lt., llth May 1953.
https://www.thegazette.co.uk/London/.../9082/data.pdf
The following officers are awarded the Cadet Forces
Medal:
COMBINED CADET FORCE
Cornwall
Lt. (A/Lt.-Col.) T. D. LEWIS (352305) (County
Cadet Commandant).
https://www.thegazette.co.uk/London/...pplement/10078
GENERAL LIST
TERRITORIAL ARMY
SECTION BII
ARMY CADET FORCE
Cornwall
Lt. T. D. LEWIS (352305) to resign his commn.,
13th Sept. 1966, and to be granted the hon. rank
of Lt.-Col.