The Millar
& Lang company were based in Glasgow and London.
Dating back to 1903, they still produced picture
postcards into
the 1940s.
Their Leap Year cards
are unsigned, but they can be recognized
by the "National Series" logo on the back.
According to Don, a
postcard collector, "They claim to be the
largest publisher of view
postcards in Britain" and were quite prolific.