Philatelic exchange with USSRThis topic has 0 replies, 1 voice, and was last updated 1 year, 1 month ago by johannestc.Viewing 0 reply threadsAuthorPosts 9 March 2020 at 4:10 pm #25931 johannestcParticipantThe triangular postmark and the postmark on the back must have to do with control of philatelic exchange in Moscow. Please more information about the text and the use of these postmarks.Attachments:You must be logged in to view attached files.AuthorPostsViewing 0 reply threadsYou must be logged in to reply to this topic.Log In Username: Password: Keep me signed in Log In