Spalding's spring face irons were produced for a number of years in America, between 1902 and 1919.  The example offered here has its original 39 1/4" shaft and its original grip.  

The face consists of a thin piece of spring steel held in place over a hollow head by six rivets around its perimeter.

The back of the head is stamped “Spalding CC”, the CC representing Cran Cleek as the club was originally sold as a spring face Cran cleek and covered under Jame’s Cran’s 1897 patent.  The spring face is a variation on the Cran's wood face. 

For more information on this lively iron, see TCA2 Vol 2 p 415