For me, it was the 1968-79 incarnation of the 232, operating at a time when outer London routes ran much less frequently than today. The 232 eased pressure on the 120 between Southall Town Hall and Norwood Green police station where it did a right onto the now unserved Thorncliffe Road before turning left onto North Hyde Lane joining up with the existing 232A that ran from Southall via the Convent Way Estate. In 1979 the 232 routeing was withdrawn with the 232A being renumbered as 232 and the 120 left to serve Southall Town Hall to Norwood Green police station all by itself. This version of the 232 was renumbered H32 in 1993 with the 232 number remaining unused for just a year before it suddenly turned up again in the Wood Green area as a new route hugging the North Circular for much of its run to Brent Cross.
N47. Although it was pretty much replaced with N199, N47 was faster and the starting/ending times were great. I like N199, but I do wish there wasn’t so much running time as it causes most drivers to crawl and move at 5 - 15mph depending on the section of the route.
Here’s hoping N47 will be brought back someday and be structured to run between Shoreditch and Croydon which covers both 47 and 75.
1) 108A Bromley-by-Bow to Eltham, Southend Crescent 2) 132 Eltham, Well Hall Station to Eltham, Well Hall Station via Danson Road and Old Bexley, or vice versa (circular service in both directions, but with Eltham to Blackfen, Woodman shorts and Sunday afternoon service to Bexley Hospital) 3) 182 Cannon Street to Woolwich, General Gordon Place via Eltham (can you see a theme developing?) 4) 213A Kingston to Morden via Sutton 5) 137 Highgate, Archway Station to Crystal Palace 6) 236 Golders Green Station to Leytonstone Station (Sundays only, garage journeys extended to Leyton Green) 7) 276 Streatham Garage to Tottenham, Snells Park
363: Tottenham Hale to Hammond Street, via the 192 to Edmonton, with a double run to Picketts Lock, then direct up Bounces Road to Hertford Road, with another double run into Edmonton Green bus station, then in a big loop via Galliard Road, then through Ponders End and up the Hertford Road to Waltham Cross for its final run via the 251 to the Old Pond and the estates of West Cheshunt. Now variously replaced by no less than four routes, all on higher frequencies (until the 491 up Galliard was recently reduced!). Not London Transport but pass-friendly inside the zonal area. Sunday service ran in two parts which did not meet - Tottenham Hale to Picketts Lock (hourly 1100-1800, funded in part by Lee Valley Park Authority), and Waltham Cross to Hammond Street (hourly or half hourly, Herts CC). Cut in, I think, 2000 or 2001, though the Cheshunt leg held out for longer. 192 was extended to cover the Tottenham end, whence the Sunday service has since been increased fivefold!
W2: Finsbury Park to Enfield, following the W7 to the foot of Muswell Hill, then the 144 to Turnpike Lane, then shadowing the entirety of the 329. Delightfully useless but a pleasant ride through a bit swathe of north London. Cut in the late 1990s.
N87, which if I remember correctly ran from Trafalgar Square via the 159 to Kennington Park, the N155 to Merton and the 131 to Kingston... where it then continued along where the 131 used to continue on to West Mosley. There were some buses mind you that branched off at Tooting Broadway via the 57 to Streatham and at Stockwell/Oval to Victoria.
That incarnation of the N87 ended in the 90s when replaced by the N155 which had a somewhat more standard routing...and which sadly meant that Colliers Wood¹ lost its night connection with Wimbledon.
¹ - where I used to connect to and from Wimbledon if I had missed the last 200