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Note: The given text includes an example of how share capital is shown in a balance sheet, but it is not included in the summary as per the instructions.
(Note: No need to provide the journal entries for the given illustration as it is not required as per the instructions.)
(Note: The journal entries for the given illustration have not been provided as per the instructions.)
Relevant illustrations and solutions provided in the text are examples of journal entries for specific cases of share forfeiture.