Golfers are known for their dedication to the game — even during war times.

But perhaps the most astonishing evidence of the fact is a document headed “Temporary Rules—1940—Richmond Golf Club, Sudbrook Park, England.“

It reads:

1. Players are asked to collect the bomb and shrapnel splinters to avoid damage to  the mowing machines.

2. In competition, during gunfire or while bombs are falling, players may take shelter without penalty for ceasing play.

3. The positions of known delayed-action bombs are marked by red flags at a reasonable, but not guaranteed, safe distance therefrom.

4. Shrapnel and/or bomb splinters on the fairways or in bunkers, within a club’s length of a ball, may be moved without penalty, and no penalty shall be incurred if a ball is thereby caused to move accidentally.

5. A ball moved by enemy action may be replaced, or if destroyed, a ball may be dropped not nearer the hole without penalty.

6. A player whose stroke is affected by the simultaneous explosion of a bomb may play another ball. Penalty, one stroke.