\documentclass{article}
\usepackage{pbox}
\usepackage{geometry}
\geometry{
	left= 0.15in,
	right= 0.15in,
	top= 0.15in,
	paperwidth=220mm,
	paperheight=110mm
}
\setlength\parskip{0pt}
\setlength\parindent{0pt}
\pagestyle{empty}

\begin{document}
\scriptsize
FROM-NAME\\
FROM-STREET ADDRESS\\
FROM-CITY, STATE, \ ZIP

\vspace{1.0in}\large
\setlength\parindent{0pt}

\begin{center}
	\pbox{0.4\textwidth}{
TO-NAME\\
TO-STREET ADDRESS\\
TO-CITY, STATE, \ ZIP
}
\end{center}

\end{document}