claim: Coins of the Swiss franc are only unofficial coins.
evidence: The London , Midland and Scottish Railway -LRB- LMS -RRB- pioneered the use of diesel shunting locomotives in Great Britain .. diesel. Diesel engine. Great Britain. Great Britain. The variety of experimental and production diesel shunters produced by the LMS is summarised below .. diesel. Diesel engine. In each heading , the first number -LRB- s -RRB- carried are shown first , with subsequent renumbering -LRB- s -RRB- following the ''  /  '' .