2027 Scott Standard Catalog Volume 6:
Countries S San, T, U, V, W, Y and Z

San Marino – Saudi Arabia – Senegal – Serbia – Seychelles – Sierra Leone – Singapore – Slovakia – Slovenia – Solomon Islands – Somalia – South Africa – South Georgia & South Sandwich Isles – Spain – Sri Lanka – Sudan – Surinam – Swaziland – Sweden – Switzerland – Syria – Tajikistan – Tanzania – Thailand – Timor – Togo – Tokelau – Tonga – Niuafoiou – Trinidad & Tobago – Tristan da Cunha – Tunisia – Turkey – Turkish Republic of Northern Cyprus – Turkmenistan – Turks & Caicos Islands – Tuvalu – Uganda – Ukraine – United Arab Emirates – Uruguay – Uzbekistan – Vanautu – Vatican City – Venezuela – Vietnam – Virgin Islands – Wallis & Futuna Islands – Yemen – Zambia – Zaire (Congo Democratic Republic) – Zimbabwe.