Highway Post Office Covers
| Cover |
 |
| Postmark |
 |
| Route Map |
 |
| SSCat Num |
C321-3-F |
| New Num |
C321 |
| Route Num |
26A |
| Route Name |
Harrisburg and Baltimore |
| Trip Number |
3 |
| Trip Type |
First |
| Date |
1961-08-20 |
| City1 |
Harrisburg |
| State1 |
PA |
| City2 |
Baltimore |
| State2 |
MD |
| Notes |
|
| Value |
$1.00 |
| Mileage |
80 |
| Qty |
|
