Can you identify my teapot

[flugeljude]

I believe my inherited teapot to be silver not plate but cannot work out the marks.
Can you help please. This is my first post.
I apologise in advance if it turns out to be plate

http://i46.tinypic.com/2cr0l4x.gif
http://i45.tinypic.com/i1ikgo.jpg

(admin photo edit - images too large - link only - see Posting Requirements )

[AG2012]

Not consistent with any silver marks; you can check for silver easily,acid solutions available online at less than $20.But file where not too visible to remove possible silver-plating and then apply solution.It will turn deep red if silver.