It can be, specially if there is a lot of scratches on the underside.
The cornucopia I am talking about has tons of scratches on the underside, and almost all of the "murano italia" is totally gone. I only saw the dot for the "i" which I thought was very unusual to have a little circle in between all the scratches, and was able to see the venini and part of the "m" for murano, and then the last letters of Italia. So yea, sometimes you have to imagine which piece you are actually looking at and then put the puzzle together. You might be lookig at something upside down and never know you have actual words there.
Javier