Lot of 7 vintage Colorado Post Cards

#413 - Traveling Through The Mountains By Moonlight

#568 - Spring Snow Banks on the Pikes Peak Cog Railroad

#139 - State Capital Dome Illuminated At Night Denver

Steamline Cog Train at Summit House Pikes Peak (no number)

#530 - Panorama of Pikes Peak & Region

#118 - Curtis Street By Night Denver

#15778 (not a Sanborn card) Windy Point, Pikes Peak Cog Road & Lake Moraine.

3 of the cards have 1927 penciled on the back.  Not sure what that means. .  Otherwise no writing or posting.