| valuable postcards before 1940 | 0.89 | 0.4 | 3515 | 30 | 8 |
| which old postcards are valuable | 0.88 | 0.9 | 3933 | 32 | 42 |
| most valuable postcards from 1900 to 1910 | 0.96 | 0.1 | 2972 | 41 | 2 |
| most valuable old postcards | 0.25 | 0.9 | 7929 | 27 | 70 |
| most valuable vintage postcards | 1.59 | 0.8 | 9651 | 31 | 98 |
| most valuable antique postcards | 1.01 | 0.1 | 7180 | 31 | 52 |
| most valuable 1900 postcards | 0.66 | 0.7 | 3474 | 28 | 60 |
| vintage postcards early 1900s | 1.48 | 0.1 | 6468 | 29 | 61 |
| history of vintage postcards | 0.27 | 0.2 | 701 | 28 | 20 |
| vintage postcards worth money | 0.71 | 0.5 | 4093 | 29 | 8 |
| value of old postcards | 0.86 | 0.7 | 9969 | 22 | 87 |
| value of vintage postcards | 1.32 | 0.3 | 136 | 26 | 2 |
| worth of old postcards | 1.29 | 0.5 | 9558 | 22 | 1 |
| vintage postcards 1900 through 1915 | 0.69 | 0.9 | 7531 | 35 | 76 |
| most expensive vintage postcards | 1.97 | 0.1 | 4777 | 32 | 1 |
| postcards vintage for sale | 0.65 | 0.5 | 3748 | 26 | 90 |
| old postcards for sale | 0.32 | 0.3 | 2187 | 22 | 27 |
| antique postcards for sale | 0.49 | 0.9 | 3778 | 26 | 21 |
| vintage postcards value guide | 0.52 | 0.7 | 6520 | 29 | 68 |
