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- Hallmark Keepsake Dreambook 2013, Celebrating 40 Years of Memories - Hallmark introduced a line of Christmas ornaments in 1973. The company's yearly release of an increasing array of ornaments revolutionized Christmas decorating. Hallmark ornaments became so popular that the company began publishing annual catalogs (later known as "Dream Books") that showcased the new Keepsake Ornaments available for the upcoming holiday season.

- 2013
- Collections - Artifact
Hallmark Keepsake Dreambook 2013, Celebrating 40 Years of Memories
Hallmark introduced a line of Christmas ornaments in 1973. The company's yearly release of an increasing array of ornaments revolutionized Christmas decorating. Hallmark ornaments became so popular that the company began publishing annual catalogs (later known as "Dream Books") that showcased the new Keepsake Ornaments available for the upcoming holiday season.
- Letter from Richard Gutman concerning Lamy's Diner and Owl Night Lunch Wagon Restorations, February 17, 1985 -

- February 17, 1985
- Collections - Artifact
Letter from Richard Gutman concerning Lamy's Diner and Owl Night Lunch Wagon Restorations, February 17, 1985
- "Hallmark Keepsake Ornament Collector's Courier," Volume 1, Number 1, Fall 1986 -

- 1986
- Collections - Artifact
"Hallmark Keepsake Ornament Collector's Courier," Volume 1, Number 1, Fall 1986
- Letter from Edward D. Ingraham to Joshua I. Cohen, April 3, 1852 - Joshua Cohen (1801-1870) collected autographs, historical documents, and colonial and Continental currency. Cohen, who lived in Baltimore, Maryland, corresponded and traded with other well-known 19th-century collectors from around the U.S. to amass his fine collection. In this letter, Edward D. Ingraham, a lawyer and book, currency, and documents collector from Pennsylvania, writes that he is unable to help complete Cohen's collection.

- April 03, 1852
- Collections - Artifact
Letter from Edward D. Ingraham to Joshua I. Cohen, April 3, 1852
Joshua Cohen (1801-1870) collected autographs, historical documents, and colonial and Continental currency. Cohen, who lived in Baltimore, Maryland, corresponded and traded with other well-known 19th-century collectors from around the U.S. to amass his fine collection. In this letter, Edward D. Ingraham, a lawyer and book, currency, and documents collector from Pennsylvania, writes that he is unable to help complete Cohen's collection.
- May F. Hogan, George B. Catlin and James W. Bishop Correspondence and Photographs, November-December 1929 -

- November 1929-December 1929
- Collections - Artifact
May F. Hogan, George B. Catlin and James W. Bishop Correspondence and Photographs, November-December 1929
- "The Pied Piper," Depicting Henry Ford Leading Early American Homes to Greenfield Village, 1935 -

- 1935
- Collections - Artifact
"The Pied Piper," Depicting Henry Ford Leading Early American Homes to Greenfield Village, 1935
- Bruce Bachmann Interview Video Recording, 2017 -

- 2017
- Collections - Artifact
Bruce Bachmann Interview Video Recording, 2017
- Sounds of America Gallery (Foster Memorial), Lawrenceville, Pittsburgh, Pennsylvania, May 1934 -

- May 15, 1934
- Collections - Artifact
Sounds of America Gallery (Foster Memorial), Lawrenceville, Pittsburgh, Pennsylvania, May 1934
- Sounds of America Gallery (Foster Memorial), Lawrenceville, Pittsburgh, Pennsylvania, May 1934 -

- May 15, 1934
- Collections - Artifact
Sounds of America Gallery (Foster Memorial), Lawrenceville, Pittsburgh, Pennsylvania, May 1934
- Sounds of America Gallery (Foster Memorial), Lawrenceville, Pittsburgh, Pennsylvania, May 1934 -

- May 15, 1934
- Collections - Artifact
Sounds of America Gallery (Foster Memorial), Lawrenceville, Pittsburgh, Pennsylvania, May 1934