Send the following on WhatsApp
Continue to ChatFinland 1972 Conclusion of the Strategic Arms Limitation Talks, Helsinki (SG 793, U/M) https://www.grahamlandstamps.co.uk/shop/stamps/stamps-by-country/finland-stamps-by-country/finland-1972-conclusion-of-the-strategic-arms-limitation-talks-helsinki-sg-793-u-m/