That was a toughie...........
Hooked it at last.
Central and South China
Jiangxi 1949 CC148 (presume CC=Central china)
Note: Top Left letter looks differing?
Thanks to Stanley Gibbons specialised.
Note : Gibbons Type 82 = Scott Type 62
Appears unlisted Scott.
PS: Gratitude to Nigel (SCF) for guidance on China difficulties.