Russian Federation 1923 First All-Russian agricultural, handicraft and industrial exhibition in Moscow Mi. 224 C, 225 Ca, 226 CF and 227 C Imperforated GREAT error 226 CF – MISSING color light blue ! Due to the error, the block has a high value. Expertised: L. Hovest All my stamps are 100% genuine and come with certificates or have an expert signature. The certificates were translated with Google Image Translator, so there may be translation errors. Please see the pictures for your own opinion Please check the photos for quality, condition and any obvious errors. Bid is based on what is shown in the picture, exactly like on the screen. You will receive exactly what you see in the pictures. UK buyers (maybe also other countries outside U.E.) need to pay extra money for customs in their own country. Parcel will be carefully packaged and shipped by registered mail with insurance and tracking code. Insured package / tracking number DPD / GLS / FedEx / Posta Romana Please do not bid if you do not agree to the above conditions. Seller's Story I am selling stamps from Russia / the Soviet Union, that I have collected over a lifetime. I am selling all my stamps because my grandchildren are not at all interested in my passion.