Hello, Every now and then I will cpme across a sealed cover that has something inside. I will hold it to the light to see if is just something to stiffen the cover or actual content. This past week I purchased a 1934 Maryland Tercentenary FDC and a 1933 General Oglethorpe FDC, both with content. I carefully slit them both open at the top and this is what I found.
When I opened the Maryland

I found these


A perfectly preserved postcard of the Hotel Albert in New York City and a newspaper clipping talking about the new Presidential stamp issues that were upcoming.
When I openrd this

I found this

A business reply cover for Irwin Heiman, a noted stamp dealer and expert on Mexican postage.
http://en.wikipedia.org/wiki/Irwin_M._HeimanMy collection has increased by five items instead of two and I am quite happy about it.
Thanks
David