1935-A silver certificate in great condition any value, serial number?

@Screeb741 said:
i heard the bills in 1935A series in the X A block were mules, or experimental does anyone have any info on this, let me know if im wrong but ive been researching forever

While , yes, there were mules per the above, the experimentals were the XB block. (so close!)
Jamie Yakes and Peter Huntoon have the details on the recently discovered 1935-A Experimental notes , Fr. 1608exp

https://www.numismaticnews.net/article/1935-1-xb-yb-zb-experimentals

"The special printings utilized the following $1 Series of 1935A serial numbers:

Fig. 1. Series of 1935A Y00000600B note printed on experimental paper consisting of 50 percent linen cuttings and 50 percent cotton cuttings. YB serial numbers 1-720,000 were printed early out-of-sequence in 1940 especially for the experiment along with others in the XB and ZB blocks.

X00000001B – X00720000B

Y00000001B – Y00720000B

Z00000001B – Z00576000B

The papers being tested were made from the following mixes of fibers:

• XB control 75 percent linen cuttings and 25 percent cotton cuttings;

• YB 50 percent linen cuttings and 50 percent cotton cuttings;

• ZB 50 percent linen cuttings and 50 percent raw cotton fiber. "