| Walter Carr gave members of the Cleadon Village Men's Fellowship a talk on deltiology, the collection of postcards. |
| And philately overlaps deltiology, the collecting of picture postcards, boxes of which can be found in antiques stores, the more downscale the better. |
| Deltiology, the study of postcards, can involve the analysis of pigments, rag content of card stock, and other measurable parameters to determine the age of particular images. |
| As I understand it there is quite a bit of good deltiology literature available, so you may want to hunt for that to get more detailed information. |
| In the period before the First World War, deltiology was the largest collecting hobby. |
