Quote:
You don't need to know any catalog number to search. If you really need catalog numbers, Higgins and Gage would be best, but not many people have access to it anymore.
I've been looking at a lot of
ebay listings for 19th-century postal cards in recent months, and yeah, catalog numbers won't help much in your searches there. Some listings have H&G numbers, others (depending on country) may have Scott, Unitrade, Michel, or what have you. But the majority of listings don't have
any catalog number in the description.
Of the last 25 unused postal cards I've bought on
ebay, 4 listings included an H&G number, 21 included no catalog number at all.
I have the PDF version of Ascher's Großer Ganzsachen-Katalog, which is helpful for identifying and organizing my old cards, but it's worthless for determining current prices, since it's 90 years old with values in Reichsmark. The updated price table for it isn't much of an improvement, being 30 years old with values in Deutsche Mark.