The saddles would be from Brooks, another Raleigh division, and the rims and tyres would be from Dunlop, a company closely related to Raleigh.This level of integration has never been surpassed in the bicycle industry, though Schwinn came close in the same era.
It may also be possible to date your frame by its serial number.Note that the serial number information below is fragmentary and incomplete, and many bikes have proven to be much newer than the serial numbers would suggest.Raleigh, in its glory years (up into the 1960's) was the absolute opposite.In their enormous Nottingham factory covered 40 acres and employed nearly 7000 workers.Britain's rise to an industrial superpower on the crest of the Industrial Revolution was based, as much as anything else, on the steel industry and the new technologies it made possible: steel ships, steel bridges, steel buildings..steel bicycles.
Raleigh originally introduced the slogan "The All Steel Bicycle" to differentiate Raleighs from competitors who used cast iron for some critical parts, a heavier and cruder technology.
They continued to be built in Nottingham until the mid-1970's, when the glamour of the 10-speed fad pushed them out of favor with the rising baby boom generation.
When a modern company sets out to build a bicycle, what they really build is the frame (if that.) They buy sets of tubing from a tubing company, cut and weld them together into a frame, paint it and install parts which they buy different specialized parts companies.
usually shared similar technology, though these models tended to have mattress saddles, Endrick rims, no chainguard braze-ons, fender stays bolted (not welded) to the fenders, and anchor-bolt type brake cables. The handlebar, cranks, brake levers, fork crown and cable hardware were painted black, not chrome plated (chromium was a strategic material, not available for civilian use.) Stem and brake calipers were chromed. The lamp bracket attaches to the handlebar binder bolt, rather than to the headset. Seat tube, vertical: RALEIGH The All-Steel Bicycle. Frame features "Pletscher"-type plate bridges, but otherwise is a dead ringer for Nottingham production, including 2030 label. Older Raleigh-made brakes used special cables with moulded ends on both ends of the cables, as shown. They were supplied in different configurations for front, gent's rear and lady's rear applications. To replace the cable assembly, you would unbolt the adjusting barrel from the caliper.
Top tube: Made in England (italic script) Down Tube: no markings. These cables can often be revived by dripping oil into them and working them back and forth. ) to reduce weight, but the braze-on was continued until (?
Contemporary bicycles have many parts made of aluminum (or "aluminium," if you prefer) for lightness, strength and corrosion resistance.