China Sun Yat-Sen Overprints

Cannot find these designs...



Any help would be appreciated.

According to Michel catalogue the first one is an unissued stamp from Mengkiang (Japanese Occupation of Inner Mongolia). Year 1945

The $1 Green is interesting.
Dr. Sun Yat Sen. $1 Green.
It has been in my "Unidentifieds" since 2010


...and found it

Listing text
China - Kiangsi - General Definitive Stamps
$1
Dr. Sun Yat-sen
Printed by Dah Tung Book Company
Kiangsi Province
Without Gum/Glue
Mint/LH


Kiangsi = Jiangxi
Taylor, G. E. "Reconstruction After Revolution: Kiangsi Province and the Chinese Nation." Pacific Affairs, vol. 8, no. 3, 1935, pp. 302–311. JSTOR, www.jstor.org/stable/2751473. Accessed 2 Feb. 2020.

Thanks everyone.