1916 Watercolour Painting of a WW1 RFC biplane painted by an RFC member

Title - Untitled
 
Date - 1916
 
Medium - watercolour Painting on paper
 
Signed - M. Stomachien
 
Picture size - 12cm x 9cm / 4.75" x 3.5"
 
Outside frame size - 32cm x 28cm / 12.5" x 11"
 
Condition - Excellent
 
Frame - Antique Victorian / Edwardian oak picture frame with period glass
 
A small, beautifully executed watercolour painting of a WW1 RFC (Royal Flying Corps) biplane in a downward dive.
The Picture is extra special having been painted by a member of the RFC. It also states that the Artist is an Illustrator for GAS. This may have been a Squadron magazine but I'm unable to say that definitively at the moment.