Funny birthday card by Rainbow

 . . . So by converting the tractor to run on natural gas, I've cut my fuel costs by almost 100%

Birthday card with a funny cartoon showing a farmer using one of his cows to power the tractor - running on natural gas! By cartoonist Lee Fearnley from the ever popular 'Funny side of Life' range. Published by Rainbow Cards, this greeting card measures approximately 8 x 6 inches and inside reads Happy Birthday.

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