The modern Japanese spoons are often available in both sterling silver and silver plate. The sterling spoons are usually marked as "sterling" or silver or sometimes the better quality silver "950" whereas the silverplated variety are unmarked. The finials are usually the same.
Porcelain enameled sterling spoon
embossed sterling spoon with round bowl which contains 3 leaves
I suspect that sets of these spoons exist, although I have never seen a complete set (I have only seen them singly). Since the silver mountings are slightly different, I suspect that the pieces may have different sets available.
left: Mt. Fujiyama (apparently more common)
right: snow scene
Japanese garden scene
This spoon does not have a purity mark on it, therefore we must assume
that
it is silverplated
It is identified as Toshikane, Japan
The finial is made in the same manner as the sterling ones shown above
Multi-level house
other variations of these spoons also exist
These spoons are also available in both sterling and silver plate. I know that the silverplated ones are available in sets of seven (because I have seen them), and I suspect that the sterling ones are also available that way, but have only seen them singly.
Ebisu is the patron God of work and symbolizes fishing and industry
If you have any of these you wish to sell, please contact me.