<svg width="500" height="500" viewBox="0 0 500 500" xmlns="http://www.w3.org/2000/svg">
  <!-- Background -->
  <rect width="500" height="500" fill="#2c3e50"/>
  
  <!-- Vault door -->
  <circle cx="250" cy="250" r="180" fill="#34495e" stroke="#f39c12" stroke-width="20"/>
  <circle cx="250" cy="250" r="150" fill="#2c3e50" stroke="#f39c12" stroke-width="10"/>
  <circle cx="250" cy="250" r="120" fill="#34495e" stroke="#f39c12" stroke-width="5"/>
  
  <!-- Vault handle -->
  <circle cx="400" cy="250" r="30" fill="#f39c12" stroke="#e67e22" stroke-width="5"/>
  <circle cx="400" cy="250" r="10" fill="#e67e22"/>
  
  <!-- Lock mechanism -->
  <circle cx="250" cy="250" r="50" fill="#f39c12"/>
  <text x="250" cy="250" font-family="Arial" font-size="60" font-weight="bold" text-anchor="middle" dominant-baseline="middle" fill="#2c3e50">T</text>
  
  <!-- Bitcoin symbol -->
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  </g>
  
  <!-- XRP coin -->
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    <circle cx="100" cy="100" r="80" fill="#23292f"/>
    <path d="M65 80l35-35 35 35h25l-60-60-60 60h25zm0 40l35 35 35-35h25l-60 60-60-60h25z" fill="white"/>
  </g>
  
  <!-- ADA coin -->
  <g transform="translate(320, 300) scale(0.4)">
    <circle cx="100" cy="100" r="80" fill="#0033ad"/>
    <path d="M100 50 L120 90 L160 90 L130 115 L140 155 L100 135 L60 155 L70 115 L40 90 L80 90 Z" fill="white"/>
  </g>
  
  <!-- SOL coin -->
  <g transform="translate(180, 300) scale(0.4)">
    <circle cx="100" cy="100" r="80" fill="#9945ff"/>
    <path d="M60 70h60l-20 20H40l20-20zm0 30h60l-20 20H40l20-20zm0 30h60l-20 20H40l20-20z" fill="white"/>
  </g>
  
  <!-- Text -->
  <text x="250" y="450" font-family="Arial" font-size="24" text-anchor="middle" fill="white">Strategic Reserve</text>
</svg>