Caution:
Note that the watermark is very
difficult to see on this stamp. A very high percentage of stamps (meaning
almost every one) submitted
for certification as the very rare Scott 476A fail and are deemed to be the far less expensive
single-line watermarked Scott 439.
Although it may seem that your stamp does not have a watermark, it most
likely does, and should always be certified before being purchased or
offered for sale. In fact, Scott 476A was not even assigned
its own Scott number, since at the time the Scott numbers were assigned this
variety was not thought to exist!