A 1912 Hotchkiss Advertisement is available at https://hprints.com/en/search?rub=316&p=1&rich=1&sortby=year_asc&syn_set_sort=1&met=syn

The advert displays what appears to be a Type AB Hotchkiss sedan with a body very similar to the coach building by James Flood in Melbourne for our Hotchkiss.

Amongst some papers relating to our Hotchkiss car and parts is a list of chassis number ranges. I have no other reference so these are anecdotal and the accuracy may be questioned.

Two models are in the list Hotchkiss Type T and Type AB.

From this list it appears that prior to 1909 Hotchkiss made 1301 vehicle chassis and the gaps in the sequences above will be due to other models carrying the intervening numbers.

Referencing Wikipedia Automobiles Hotchkiss page the other models include

• Hotchkiss Years and Models
  • 1903 – The first Hotchkiss car with a 17CV engine
  • The Type C was a 20CV engine
  • 1907 Type L and Type O 6-cylinder models
  • 1910 Type X 30CV engine
  • 1910 Type Z with a smaller 2212cc engine
  • 1911 Type AB
  • 1912 – 1916 Type AD, AD6, AF, & AG
  • 1919 Resumption after WW1 of the same models Type AD, AD6, AF, & AG
  • 1923 Type AM and prototype AK
  • Car production was from 1903 to 1955 and Trucks from 1936 to 1970.

As much for my memory, CV or HP are an approximate equivalent, but not exact. 1 HP equals 1.01368 CV (PS).

Understanding HP, BHP, PS, and CV

The historical origins of HP, BHP, and PS lead back to the industrial revolution.

• CV (chevaux-vapeur or CH) and PS (Pferde Stärke), based on DIN regulations, are equivalent units representing the power required to lift a 75 kg mass by 1 meter in 1 second (735.49875 Watts).
• HP (horsepower), slightly different, involves lifting a 76 kg weight (745.3054 Watts).
• BHP (Brake Horsepower) accounts for friction losses and represents engine output without drivetrain losses.

With thanks from https://a-e.li/reports/hp-bhp-ps-cv/#is-cv-and-hp-the-same