The history of Pennsylvania's Main Line is rich with fascinating stories, many of which have disappeared in the grasp of time.

Any given day online, antiques and collectibles dealers post pieces of Lower Merion history to retail websites like eBay and Craig's List. "Ardmore for Sale" is a new column taking a look at stories from the past, viewed through items currently being sold.

It was the fall of 1916, Dorothy Haley penned a quick note on this postcard of the "new" Lower Merion High School building that she attended for three years, "as it was only built in 1911." The school pictured was the first building at Lower Merion High School's current site on 245 E. Montgomery Avenue, and the first time the high school, which was officially formed in 1894, had its own building, according to an essay by Ted Goldsborough published on the Lower Merion Historical Society website.

The new building, made of granite and limestone, was considered one of the most impressive educational facilities in the state at the time of its construction, Goldsborough said. And at the time the postcard's sender went to high school in the 1912-13 school year, there were 21 teachers at the school, according to the essay.

The postcard is being sold on Ebay for $10.

Anyone looking for more recent high school memorabilia can check out "the Enchiridion," Lower Merion High School's yearbook from 1959, being sold here by auction on eBay.

Enchiridion is Latin for handbook, and is still used for the title of Lower Merion's yearbook. The edition being sold is in hardcover and is 124 pages long.

If you think the recent recession was bad for local businesses, check out these financial records from Ardmore, PA in 1929, right before the Great Depression began.

Offered on Ebay for $13, these financial papers list more than 200 businesses, merchants and tradespeople in Ardmore from March 1929. The book is printed with the title "confidential business directory," and includes the financial condition of each of the sellers in the area, with credit ratings and other measurements.

Of course the numbers might look foreign to us, considering just eight years later a woman could buy a new spring dress for $22.75. This 1937 postcard, sold by auction on Ebay, shows an advertisement from Dorothy R. Bullitt Inc., a retailer with Ardmore and Germantown storefronts. Colors offered: flamingo, desert sand, gray, light rose, royal blue and navy.

These full-page Autocar ads show off one of Ardmore's booming businesses at the turn of the last century. Ranging from the early 1900s to the late 1940s, several full page ads for The Autocar Company, located in Ardmore from 1899 to 1953, are available from $9-$38 dollars on Ebay.

The Autocar Company created some of America's first heavy-duty trucks at the turn of the century, and later became a key supplier to the United States military, according to an essay by Bob Manchester Cromwell, published on The Golden Age of Trucking Museum website.

This Nov. 5, 1904 edition of Harper's Weekly, a New York newspaper, holds a full-page photo spread of women playing an amateur golf championship at the Merion Links in Haverford. The newspaper is being sold for $35 on Ebay.

The item's seller said the first women's amateur championship was established in 1895, making the Haverford photos the ninth annual contest in an event that continues to this day.

In more recent sports history, these two Kobe Bryant-signed items were obtained when Bryant still played ball at Lower Merion High School, according to the seller. Bryant signed #33 next to his name—his high school basketball number at Lower Merion. The signed golf ball and baseball are being sold via auction on eBay.