This magnificently oily Campagnolo catalogue 17 has a copyright date of 1974, and is generally considered to date from late 1974, describing the range for model year 1975.

Handily, this particular example is in French - which lends it a certain je ne sais quoi.

Amongst much else, it describes a classic line-up of derailleurs:

• Campagnolo Super Record (4001). The version shown had embossed writing on the outer parallelogram plate.
• Campagnolo Nuovo Record (1020/A). The model shown is an mid period version with lined up dots around the logo and a removable parallelogram spring.
• Campagnolo Nuovo Gran Sport (3500). The version shown had 'flat' main bolt heads and a removable parallelogram spring.

• Campagnolo Rally (3450). On its b-knuckle, the version shown appears to have no gusset between the 'arm' holding the hanger bolt and the section holding the parallelogram pivots.

• Campagnolo Valentino Extra (2170). The model shown has 10 toothed pulley wheels althogh these have the same part number (930/B) as the 9 toothed versions shown in Catalogue No. 16.

Strangely, there was no mention of the unlovely Campagnolo Velox (2250) and Campagnolo Gran Turismo (2270). These two gems appeared in the earlier Supplement to the Cycle Catalogue No. 16 and in the later Catalog 17a, but were absent here - perhaps they were an embarrassment best kept hidden.

• Publisher: Campagnolo
• Country: Italy
• Date: 1974
• Derailleur brands: Campagnolo
• Derailleurs: Campagnolo Super Record (4001), Campagnolo Nuovo Record (1020/A), Campagnolo Nuovo Gran Sport (3500 1st style), Campagnolo Valentino Extra (2170), Campagnolo Rally (3450)