Vintage "William Booth" Salvation Army Chromolithographic Badge Circa Early 1900's

This is in marvelous condition with no scratches or marks and measures 1 1/4" in diameter. The picture features William Booth the Founder of the SALVATION ARMY resplendent in his regalia. On the back is a cardboard insert that reads.... Salvation Army Uniform & Outfitters Department London. We believe this Pin Back would date to around 1910-1920 period but may be earlier.