(1) "Greetings From Baltimore MD", Letter Carrier Series 1907 Add-on with 12 Views used no stamp UDB, Written Message on the back of folded Views; (1) "Masonic Arch Star Spangled Banner Centennial Sept. 6 '13", used 1914 with stamp , B&W; (1) "Views of Baltimore Md", used 1906 UDB tape residue with stamp, B&W; (1) "Greetings from the City of Baltimore" used 1907 with stamp , writing on front with date; (1) "Baltimore Md" 4 Leaf clover unused , Rinn Publishing; (1) " The Beachey Air Ship rounding City Hall Baltimore" unused B&W; (1) "Hubert Latham The Man Who Delighted all Baltimoreans Seated in His Antoinette", unused B&W; (1)"Aviator Latham in His Aerioplane Flying of the City of Baltimore", unused B&W; (1) "Baltimore Our Baltimore", used 1924 with stamp; (1) "Mercantile Trust & Deposit Co. of Baltimore" 1912 Promotional, used with Stamp; (1) "Greeting from Baltimore MD" used 1951 Linen with stamp; (1) "Baltimore's Transatlantic Air Base, Municipal Airport Dundalk near Baltimore Md", unused Linen; (1) " Terminal Building Friendship International Airport Baltimore, MD." unused Linen; (1) " Observation Ramp, Friendship Airport, Baltimore MD" unused Linen