I have some silver dishes I would like to know the value of:

1~ A teapot with Hudson Navigation Co. flag logo (written of a waving flag) on it.

Bottom reads:

Hudson Navigation Co.

International Silver Co.
Silver Soldered

05002

Patented
August 27, 1918

then a symbol with three lines coming to one point with the number 15 nearby.



2~ Seems to be a sugar bowl of some sort. Also has the logo, but not on a waving flag.

Bottom reads:

Hudson Navigation Co.

(then a logo, surrounded by the words " Rogers Bros." and "1847".

Has the words " Nickel Silver", " Meridan", and " Silver Soldered " inside the logo along with an eagle sitting on a branch)

SH0152

Silver Soldered

5 oz.


I got these items from a recently deceased relative, and I am trying to get money for college. Any idea what they are or their worth? Where can I sell them? Should I polish them or leave them tarnished?
Thanks so much!