One of the largest privately held library postcard collections ever offered for sale is now up for auction on eBay. The collection includes 2,811US and international library postcards assembled by an architectural firm. The starting auction price is $2,800 or about $1 per postcard. The auction has a 9 day bidding period starting today, but it could be bought without competitive bidding for $5,600 through eBay's "Buy it now" feature. I won't be bidding because my library postcard collection is more focused on postcards that feature specific areas, but this is quite an opportunity for an individual collector or an institution to get a large library postcard collection in one fell swoop.