First of all look at the size of that post it is huge, so did the illustrator not play rugby, take his cue from the text, and think the goal was the same size as a football one? According to some research, the width of a football goal is 24 foot long, whilst that for professional Rugby is 18.71’-19.03’ | 5.7-5.8 m (Overall), whilst the inside width of the crossbar varies depending on whether it is a League match at 18.04’ | 5.5 m - or a Union one at 18.37’ | 5.6 m (Union).
This is a most attractive set, though it does include several "sports" that are thankfully not to popular taste today. However it does include a very sought after card for cricket fans, card 14 which shows "Cricket - Batting (England)" - the batter shown is none other than W.G. Grace.
The set is also vari-backed, and you can see samples of all the backs, including the more recent reprint version, courtesy of our friends at The Cartophilic Info Exchange