Need Help With ID

After number 635 is a note about the $4 and $5 stamps being prepared but not issued. Does this stamp have a Scotts number or does the over stamp mean it will be possibly under another country?

No Chinese stamps was ever issued or overprinted for use in another country that is not currently within the modern borders of China.
I'll need to look these up when I get home from work.
There are many polities that issued overprints, some political ie Communist, Nationalists, warlord cliques, foreign occupations, others because of different or new currency changes used in their respected areas. Then others were meant to be but were never issued.

I'll see what I can find out!

These are both Gibbons #1, North-Eastern Provinces, issue of February 1946, catalog 40 pence mint. It is the lowest denomination of a set of five, all of minimal value. Gibbons: "...Under this heading are listed the issues made in Manchuria by the Chinese Nationalists. After the surrender of Japan, Nationalist troops were moved to Manchuria, from which Soviet troops were withdrawn by May 1946..." and "...there are many shades and several varieties of paper in this issue..."

Edit///
Note that #635 is Scott Type A37. These two stamps are not Type A37, as they have no shading behind the head, and have arabesques at the sides instead of pillars.

Arabesque:
thanks for offering a new adjective to my philately speak.

The Arabesque used as a term in European art, including Byzantine art, is, on one definition, a decorative motif comprising a flowing and voluted formalistic acanthus composition.