The Hobbies brand has produced many Scroll/Fred saws and is still going strong as a brand in England.
The firm started in 1887 in Dereham.
I have placed the saws in what i think is the following order that they where produced, i will change it when new information comes to hand.
The "Brittania" Saw from 1890.
The "Briton" saw
The "Triumph" saw
Source; Tyzack catalogue 630 from 1930.
The "Improved Roger" saw below.
The "British" saw from 1904 .
The " IDL " but with a very interesting drill and saw arrangement.
Advertising in Hobbies mag. 1930.
The Famous "A1" from about 1915 below.
Advertising in Hobbies mag. from 1916.
Below probably a early A1 with the arms modified.
These are from before 1927, after that date i have pictures in HOBBIES Magazines that have a different top pully arrangement.
Have a look at the picture the bottom table arm is straight, and the pully arrangement it incorporated in the front legs.
And the well known "Gem" introduced in 1920.
The green one is from Close before or during the second world war 1920/1940 and the blue one from round 1950.
And the last saw they produced "Anchor" in 1934.