Lot 169
 
Canal Zone Registration Envelope, 1918, 10¢ on 5c black & red on cream, narrow surcharge (UF1), size 8 entire, F-VF. Only 1,000 of the size 8 envelope were issued compared with 9,000 of the size 6. Only three mint examples are recorded. UPSS R2 $3,000.
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| Realized $4,000 |
