OK, now we are getting somewhere. Yes, you spoon is Russian silver 875/1000. The Greek letter delta tells us that it is made in Moscow between 1908-1917(27). The maker is MA but who he is, is a long haul because there are alternatives. I have to investigate and if I find someone suitable, I'll tell you. However, maybe some one else here knows him, wait and see.
The reason for asking the spoon's provenience was, that nowadays too many forged spoons and especially enameled are circulating on the market. If you had answered that you just bought it from the flea market or from an unknown person on the street, the likelihood of the spoon being forged would have been rather high.
In your case the likelihood is low. Anyway, just looking at a picture and decide fake or not is not the best starting point for such decision making. You should have it in your hands and investigate it. Kindly read also this thread:
viewtopic.php?p=45694#45694.