Lot
129 
Idaho Springs Colo. Sep 5, blue cds with matching cork cancel on 1875 1¢ black Postal card to Plattsmouth, Nebraska, light crease, Very Fine and attractive. Estimate $50 - 75.
This was mailed seven months before the official name change from Idaho to Idaho Springs, but a clear year date on the reverse verifies territorial usage.
Realized: $25