Monte San Giovanni In Campis
(now known as Monte San Giovanni Campano)
Monte San Giovanni In Campis was a second class distribution office reporting to Frosinone. In 1871, Monte San Giovanni In Campis had a population of 6,189.

M[on]te S[an] G[iovanni] In Cam[pis], black postmark on 1853 folded letter, 1 bajocco black on blue green 1852 pays the rate for a single letter within the same direzione postale.

M[on]te S[an] G[iovanni] In Cam[pis], red postmark March 1859, rated 6 bajocchi (double the 3 bajocchi rate) to Rome. Frosinone transit marking with indistinct March date, Roma March 14, 1859 arrival marking on back.