RBI 100 Rupees first issue and the second issue

Type 1:

100 Rupees first issue by RBI in 1938 in the Bombay circle. Signed by J.B. Taylor.

Type 2:

 

100 Rupees, 2nd issue by RBI in Bombay circle in 1944 Signed by C.D. Deshmukh 

Type 3 and Type 4 are similar looking examples except the following characteristics: 

Type 3: The front facing watermark King George VI and serial numbers in black. These notes were signed by C.D. Deshmukh. 

Type 4: The front facing watermark of King George VI with green serial number. Signed by C.D. Deshmukh. 

These notes were demonetized by RBI in 1957, before this they were treated as legal tender throughout the country.