Please take a look at the
ERRORS thread started by Archey80 re:
Missing # of 1954 $2.00 where this topic is discussed.
I've copied the address here:
http://www.cdnpapermoney.com/cgi-bin/yabb/YaBB.pl?num=1165379386/10#10I've posted an image of a !954 $1.00 note which had its serial numbers removed. You can barely see the missing microprinting -- but it helps if you squint or step well back from the monitor -- its almost surprising to see how the outlines show up.
I suggest you do the same for your note. It could be legit (yes missing serial numbers are a legitimate error -- but they have been known to be "manufactured")
If you inspect it closely you may see the missing microprinting -- or its in tact. If the microprinting is in tact -- its likely legitimate. For a second opinion - attend a show.
Hope this helps...