The Brooks logo and the patent application No. indicate that it was made between 1949 & 1951 !
This patent (No.6826) was applied for March 12, 1949 (/49) and was published in full in 1951. Additionally the oval Brooks logo was discontinued in 1955. In this instance the year stamp which I think first appeared from the mid to late 1950's won't be much help.
(the patent relates to electric hot rivetting the of the frame rods (saddle rails) to the back or cantle plate).
Bob Reid Stonehaven Scotland
- One day when I get time I'll catalog all these wee Brooks nuances......... A Brooks timeline perhaps.