Turn buttons. They can be loosened to change the art work and they can be placed between corners.
IDK, my guess would be a bonsai tray or "saucer" for a planter.
Stohl Pottery Spira California...check out their Ruff-ware.
If it were sterling, I believe it would be marked either with a jungin mark or the decimal standard.
Silverplate made in Yokohama or Tokyo because they are near Mt Fuji. You probably already know that this is an Army Air Cavalry emblem.
Ooops...link doesn't work. Try this: http://www.ebay.ie/itm/131442255169
I found this listing for a similar piece...
Walker Potteries (http://hrgallery.mysite.com/walker.html)
Pfaltzgraff
This looks like a busk (corset stay) to me, BWDIK.
I think it's part of a braiding machine...at least this is food for thought.
I think this is from one of the minor California Potteries like Johannes Brahm. (I saw your post earlier, but didn't have time to reply.)
Standard Glaze pottery late 19th - early 20th century. Many of the potteries made pots in Standard Glaze - Peters & Reed, Weller, Roseville,...
I think Anund is right on the other pig...shape shown in Bomm's ROSEVILLE IN ALL ITS SPLENDOR p. 58. I've never seen a blue spongeware Roseville...
Thanks for the welcome, but I've been around for a couple years. I don't have time to post due to an illness in the family.
Seated pig is Roseville.
I know it's been ages...life got in the way, but we're slowly getting back to "normal."
Weller Pottery
Jeep was running when I parked/covered it three years ago to work on my Triumph motorcycles...too many projects, too little time.
Separate names with a comma.