Line with a circle underneath

[colletti1]

Hello: I have two small pitchers measuring 6.5 x 4.5" with a ship embossed on them. They are stamped on the bottom, one with a 4 and one with an 11--but underneath each number is a line with a small o under it. Can anyone identify the maker? Thanks, Teri

 

[SusanMN]

There is a pottery board,and you will likely have better luck there. And a picture of the pot and marks would increase your odds of someone being able to help you too.