Help Identify US Scott 64, 599A, 634A

Hi everybody, I have these 3 stamps. Can anyone please help id them to see if they are Sc 64, 599a and 634a. Thank you.

The SC#64 is tough by a scan - monitors do not read true color ... they have to be color calibrated with a special software program (expensive) and mine hasn't been. I wouldn't hazard a guess. You will need to get a certificate to find out if it is a true #64. Here's a quick scan (sorry I mis-cropped) of a true pink Sc# 64, used within the first 60 days of issue, for a comparison-- this is a genuine 64 Pink..

For your the 4th Bureau Issue check: http://www.1847usa.com/1922identifier.htm I can't determine the perfs on the single stamps.
IF, the pair is Plate#19899 was a SC#599 UnWmk Rotary Print Vert Perf 10 Coil issued January 9, 1923 my eyes aren't good enough to read the partial # even when enlarged.

Thank you Hal, the web site you provided is very useful. The pair is not 599a and it is actually 599?

Cool. I couldn't tell by the scan. if a Type I or Type II

Hal