It could be a list of text that has a number in front of it.
Numbered means that the card is serially numbered on the front or back of the card to a certain number.
Most cruise ships have odd numbered life boats on the starboard side and even on the port side. The lifeboats are usually numbered from smallest to largest, front to back. Lifeboat 1 would most likely be the forward-most on the starboard side.
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the cylinders are numbered starting with one from the back left of the motor so the back three cylinders are numbered 1-3-5 and the front three are numbered 2-4-6
Usually one is on the front if you mean firing order. You can search most engines and it will show you front and how cylinders are numbered. (number one is sometimes on right and sometimes on left bank-depends on car)
Firewall 4 3 2 1 FRONT
The side closest to radiator are 1, 3, 5 front to back and 2,4,6 front to back
Driver's side front to rear 1,3,5 Passenger's side front to rear 2,4,6
Drivers side, front to rear, 1,3,5,7. Pass side front to rear, 2,4,6,8.
Drivers side, front to rear, 1,3,5,7. Pass side, front to rear, 2,4,6,8.
The engine cylinders are numbered 1 to 4, on the passenger side of the engine, from front to back (by firewall) and 5 to 8 , on the driver's side of the engine , from front to back ( by firewall ) Helpfull