small group of ten folded letter and covers including: January 7 A-1 postmark on 1836 folded letter, April 21 A-1 postmark in black with straight-line “Paid” on 1840 folded letter, April 17 A-2 postmark in blue on 1842 folded letter, August 26 A-3 postmark in red with straight-line “Paid” on 1844 folded letter to John T. Haight, September 7 A-3 postmark in red with cog” “5” on 1848 folded letter from J.B.F. Russell, September 11 A-3 postmark in red with cog “10” on 1849 folded letter from Larrabee & Williams, February 18 A-4 postmark in red with cog “10” on 1851 printed bank form, February 22 A-4 postmark in black with red “Paid 3” on cover to New York, September 5 AN-1 postmark in red, and September 29 AN-2 postmark in blue on 1853 cover, mostly fine to very fine strikes, an interesting group with worthwhile contents for the Chicago postal historian