Tom, I could not find this one in the catalog...
Mark is 900 followed by a crescent moon, crown, and then a five point star. I found two makers that use the moon, crown & star, but they did not match this one.
This is from a spoon set that consists of a large serving spoon and 10 very small ones, reminiscent of demi-tasse spoons.
The length of the large spoon in 8 inches.
Only the large spoon is marked.