Originally Posted by
AlanII
From the link you gave, it looks like you're confusing your McPhersons.
"Thomas McPherson was born in 1822 in Kingussie, in Inverness, Scotland. Like many Scotsmen of the period, McPherson decided to emigrate to Australia to try his luck in the newly established colony. McPherson arrived in Melbourne in 1852. McPherson launched his own business on Collins Street West, acting as a supplier for pig iron to the local foundry industry. The pig iron stock was brought in by trading ships coming to Australia to bring back wool and wheat to the United Kingdom."
ie No mention of a cutlers in Glasgow, UK. Sounds like your blade was made in Sheffield and sold through a Scots cutlers. From what I recall, the 'Silver Steel' would fit with your dating though. Late 19th-early 20th cent. Better than me should be along soon, so take what I say with a pinch of salt.
The important point is, of course, that it's a great shaver.