This is an extremely basic horse racing-themed betting game. It is named for the Solvalla racetrack in Stockholm and has no relation to later games using the name. Players bet on one of six colours, the exact means of which are not specified or provided. A roulette wheel is then spun, assigning a number and thereby a relative position to each colour. Depending on the bets made and betting scheme agreed on beforehand (win or place), payments are made. You can then presumably continue in the same way for as long as you desire. Probably sold in the 1940s or 1950s. —user summary

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