Soviet Occupation Issues. 1940, black or red overprints ''L T S R. 1940.VII.21'' on definitive stamps of 1937-40, complete set of singles and blocks of four, in addition inverted overprint on 10c, inverted watermark on 2c in block and cover to Riga franked by seven stamps of the set, mainly fresh quality, full OG, NH or LH, VF (Image)