The RC marking first appeared in November, 1924 in Tegus and remained there throughout its 13 years never to be seen outside the city. It remained unchanged throughout the period reaching peak usage in 1927 and 1933, ending in 1937.
Very early use of the RC marking in Tegus along with a late application of the BH72 cancel, November 1924.
Very late use of the RC marking in Tegus along with a BH50 cancel, January 1937.
