For the 8 months of this year that we owned the Aerospace Hardware business revenue was $123.2 million with an EBITDA of $17 million, of which $29.1 million of revenue and $4.9 million of EBITDA was realized in the third quarter. The results for the Aerospace business, including the loss on the sales, are included in discontinued operations for this quarter, with all prior periods adjusted to exclude Aerospace from continuing operations. For your reference, our third quarter 10-Q will include more detail regarding both P&L and balance sheet restatements. Also, this morning, we posted the revised historical performance by quarter on the Investors page of our website to assist in adjusting your models.
Moving on, let's now talk about our third quarter results from continuing operations. We are very pleased to report another strong performance, which resulted in a 100 basis point improvement in the year-on-year operating margin, as well as the sequential 40 basis point improvement. In addition, we delivered our sixth consecutive quarter of double-digit leverage, with a 12% incremental operating margin on increased sales. The third quarter of 2011 also marks our highest quarterly revenue in our history.
Now let's begin with a more detailed discussion of our third quarter sales results. In the third quarter, we reported a 20% increase in year-on-year sales. After adjusting for $30.7 million of sales from the acquisition of Clark Security Products in the fourth quarter 2010, an estimated $33 million of favorable effective copper prices and $35 million of favorable foreign exchange effects, organic sales still grew by 13% over the prior-year period.
All 3 of our end markets, as well as each of our 3 geographic segments, delivered strong year-on-year growth during the quarter. Similar to Q2, the 3% sequential quarter increase in reported sales more closely approximates longer-term historical seasonality trends. All geographic segments reported sequential growth from the second quarter of 2011. We believe our positive sales results, which are well in excess of broader GDP growth rates, reflect the combined impact of moderately improving macroeconomic factors and the success of our global strategic growth initiatives, which Bob will discuss in more detail later on in the call.Read the rest of this transcript for free on seekingalpha.com