Some of them are listed here:īB, BK Børge Kildemoes Cykelfabrik A/S, Nr. Since 1942 there have been several hundred manufacturer codes in use. The same applies to Monark Long Johns produced for the non-Danish market.Įvery single manufacturer/importer has its own official and unique letter code(s). Note: Serial numbers of Danish bikes built before 1942 don´t necessarily meet this specification. Yr: letter code indicating the year of manufacture (see list below) nr.: sequential number assigned by the manufacturer (up to 8 digits) Manuf.: letter code indicating the manufacturer or importer (1-3 letters, see list below) Imp.: Imported bikes (not made in Denmark) are marked with “W”, otherwise this field is left blank.
Serial number on the seat tube of a 1955 SCO Long John. it´s not a Danish bike or it was not built for the Danish market the number (or parts of it) is covered with paint the number (or parts of it) got lost due to abrasion, scratches, corrosion or any other damage the bicycle was built before 1942 when serial numbers weren´t mandantory in Denmark Maybe you won´t find a (valid) serial number for one of the following reasons: Other popular locations for serial numbers on bicycles are under the bottom bracket and on the rear drop-outs. On Long Johns the serial number can be most likely found in one of these locations:ġ: on left side of the top tube (SCO, Monark)Ģ: on left side of the seat tube (older SCO and others)Ĥ: upper side of chain stays, between bottom bracket and rear wheel (Esimex) In 1942 Denmark introduced a nationwide sytem of serial numbers for bicycles and mopeds which encodes both the manufacturer and the year of manufacture. On Danish bikes you´ve got a good chance to get this information by analyzing the serial number. Most Long John owners would like to know age and manufacturer of their bike. How to determine age and manufacturer of a Long John bike (and other Danish bikes): I’m not sure if Magistron is the name of the manufacturer or of the patent for the front end, but that’s the only name I’ve found on the bike.
I’ve not yet looked for its frame number to identify the age and manufacturer, but thanks to the superb page on that provides the necessary information (reproduced below) I hope it will be easy. It’s totally roadworthy (I’ve still not got round to doing any of the work on my Urania). Nevertheless, I came across this second one and I couldn’t help myself. Actually, no man should own more than one Long John.
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